<?xml version="1.0" encoding="UTF-8"?>
<dataset name="us_senate_party_division_changes" title="U.S. Senate party balance through each Congress since 1789" source="https://aidb.si/d/us-senate-party-division-changes">
  <row>
    <id>1-1st-session-0</id>
    <congress>1</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1789-03-04</session_start>
    <session_end>1789-09-29</session_end>
    <as_of>1789-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>15</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>22</total_seats>
  </row>
  <row>
    <id>1-2nd-session-0</id>
    <congress>1</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1790-01-04</session_start>
    <session_end>1790-08-12</session_end>
    <as_of>1790-01-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>19</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>26</total_seats>
  </row>
  <row>
    <id>1-3rd-session-0</id>
    <congress>1</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1790-12-06</session_start>
    <session_end>1791-03-03</session_end>
    <as_of>1790-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>18</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>8</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>26</total_seats>
  </row>
  <row>
    <id>2-executive-session-0</id>
    <congress>2</congress>
    <session>Executive session</session>
    <session_start>1791-03-04</session_start>
    <as_of>1791-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>26</total_seats>
  </row>
  <row>
    <id>2-1st-session-0</id>
    <congress>2</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1791-10-24</session_start>
    <session_end>1792-05-08</session_end>
    <as_of>1791-10-24</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admi</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>11</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>28</total_seats>
  </row>
  <row>
    <id>2-2nd-session-0</id>
    <congress>2</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1792-11-05</session_start>
    <session_end>1793-03-03</session_end>
    <as_of>1792-11-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>13</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-executive-session-0</id>
    <congress>3</congress>
    <session>Executive session</session>
    <session_start>1793-03-04</session_start>
    <as_of>1793-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>13</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-1st-session-0</id>
    <congress>3</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1793-12-02</session_start>
    <session_end>1794-06-09</session_end>
    <as_of>1793-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>15</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>13</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-1st-session-1</id>
    <congress>3</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1793-12-02</session_start>
    <session_end>1794-06-09</session_end>
    <as_of>1794-04-24</as_of>
    <change_in_session>1</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>13</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-1st-session-2</id>
    <congress>3</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1793-12-02</session_start>
    <session_end>1794-06-09</session_end>
    <as_of>1794-05-11</as_of>
    <change_in_session>2</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-1st-session-3</id>
    <congress>3</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1793-12-02</session_start>
    <session_end>1794-06-09</session_end>
    <as_of>1794-05-24</as_of>
    <change_in_session>3</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>11</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>3</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-2nd-session-0</id>
    <congress>3</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1794-11-03</session_start>
    <session_end>1795-03-03</session_end>
    <as_of>1794-11-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>11</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>3</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-2nd-session-1</id>
    <congress>3</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1794-11-03</session_start>
    <session_end>1795-03-03</session_end>
    <as_of>1794-12-29</as_of>
    <change_in_session>1</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>16</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>3-2nd-session-2</id>
    <congress>3</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1794-11-03</session_start>
    <session_end>1795-03-03</session_end>
    <as_of>1795-02-07</as_of>
    <change_in_session>2</change_in_session>
    <party1>Pro-Admin</party1>
    <party1_seats>17</party1_seats>
    <party2>Anti-Admin</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>4-special-executive-session-0</id>
    <congress>4</congress>
    <session>Special Executive session</session>
    <session_start>1795-06-08</session_start>
    <session_end>1795-06-26</session_end>
    <as_of>1795-06-08</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>20</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>4-1st-session-0</id>
    <congress>4</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1795-12-07</session_start>
    <session_end>1796-06-01</session_end>
    <as_of>1795-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>21</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>4-1st-session-1</id>
    <congress>4</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1795-12-07</session_start>
    <session_end>1796-06-01</session_end>
    <as_of>1796-03-08</as_of>
    <change_in_session>1</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>20</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>4-1st-session-2</id>
    <congress>4</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1795-12-07</session_start>
    <session_end>1796-06-01</session_end>
    <as_of>1796-04-12</as_of>
    <change_in_session>2</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>20</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>30</total_seats>
  </row>
  <row>
    <id>4-2nd-session-0</id>
    <congress>4</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1796-12-05</session_start>
    <session_end>1797-03-03</session_end>
    <as_of>1796-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>21</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>11</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>5-special-session-0</id>
    <congress>5</congress>
    <session>Special session</session>
    <session_start>1797-03-04</session_start>
    <as_of>1797-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>22</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>5-1st-session-0</id>
    <congress>5</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1797-05-15</session_start>
    <session_end>1797-07-10</session_end>
    <as_of>1797-05-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>22</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>5-2nd-session-0</id>
    <congress>5</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1797-11-13</session_start>
    <session_end>1798-07-16</session_end>
    <as_of>1797-11-13</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>22</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>5-3rd-session-0</id>
    <congress>5</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1798-12-03</session_start>
    <session_end>1799-03-03</session_end>
    <as_of>1798-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>22</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>6-1st-session-0</id>
    <congress>6</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1799-12-02</session_start>
    <session_end>1800-05-14</session_end>
    <as_of>1799-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>22</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>6-2nd-session-0</id>
    <congress>6</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1800-11-17</session_start>
    <session_end>1801-03-03</session_end>
    <as_of>1800-11-17</as_of>
    <change_in_session>0</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>21</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>6-2nd-session-1</id>
    <congress>6</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1800-11-17</session_start>
    <session_end>1801-03-03</session_end>
    <as_of>1801-01-08</as_of>
    <change_in_session>1</change_in_session>
    <party1>Federalists</party1>
    <party1_seats>21</party1_seats>
    <party2>Democratic Republicans</party2>
    <party2_seats>11</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>7-special-session-0</id>
    <congress>7</congress>
    <session>Special session</session>
    <session_start>1801-03-04</session_start>
    <session_end>1801-03-05</session_end>
    <as_of>1801-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>15</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>17</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>7-1st-session-0</id>
    <congress>7</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1801-12-07</session_start>
    <session_end>1802-05-03</session_end>
    <as_of>1801-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>18</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>14</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>7-2nd-session-0</id>
    <congress>7</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1802-12-06</session_start>
    <session_end>1803-03-03</session_end>
    <as_of>1802-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>18</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>14</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>32</total_seats>
  </row>
  <row>
    <id>8-1st-session-0</id>
    <congress>8</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1803-10-17</session_start>
    <session_end>1804-03-27</session_end>
    <as_of>1803-10-17</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>25</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>8-2nd-session-0</id>
    <congress>8</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1804-11-05</session_start>
    <session_end>1805-03-03</session_end>
    <as_of>1804-11-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>25</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>9-1st-session-0</id>
    <congress>9</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1805-12-02</session_start>
    <session_end>1806-04-21</session_end>
    <as_of>1805-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>9-2nd-session-0</id>
    <congress>9</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1806-12-01</session_start>
    <session_end>1807-03-03</session_end>
    <as_of>1806-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>10-1st-session-0</id>
    <congress>10</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1807-10-26</session_start>
    <session_end>1808-04-25</session_end>
    <as_of>1807-10-26</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>28</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>6</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>10-2nd-session-0</id>
    <congress>10</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1808-11-07</session_start>
    <session_end>1809-03-03</session_end>
    <as_of>1808-11-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>28</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>6</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>11-special-session-0</id>
    <congress>11</congress>
    <session>Special session</session>
    <session_start>1809-03-04</session_start>
    <session_end>1809-03-07</session_end>
    <as_of>1809-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>26</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>11-1st-extraordinary-session-0</id>
    <congress>11</congress>
    <session>1st (extraordinary) session</session>
    <session_number>1</session_number>
    <session_start>1809-05-22</session_start>
    <session_end>1809-06-28</session_end>
    <as_of>1809-05-22</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>11-2nd-session-0</id>
    <congress>11</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1809-11-27</session_start>
    <session_end>1810-05-01</session_end>
    <as_of>1809-11-27</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>11-3rd-session-0</id>
    <congress>11</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1810-12-03</session_start>
    <session_end>1811-03-03</session_end>
    <as_of>1810-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>7</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>12-1st-session-0</id>
    <congress>12</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1811-11-04</session_start>
    <session_end>1812-07-06</session_end>
    <as_of>1811-11-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>28</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>6</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>34</total_seats>
  </row>
  <row>
    <id>12-2nd-session-0</id>
    <congress>12</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1812-11-02</session_start>
    <session_end>1813-03-03</session_end>
    <as_of>1812-11-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>30</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>6</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>13-first-session-0</id>
    <congress>13</congress>
    <session>First session</session>
    <session_start>1813-05-24</session_start>
    <session_end>1813-08-02</session_end>
    <as_of>1813-05-24</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>28</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>8</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>13-first-session-1</id>
    <congress>13</congress>
    <session>First session</session>
    <session_start>1813-05-24</session_start>
    <session_end>1813-08-02</session_end>
    <as_of>1813-06-21</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>13-2nd-session-0</id>
    <congress>13</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1813-12-06</session_start>
    <session_end>1814-04-18</session_end>
    <as_of>1813-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>13-3rd-session-0</id>
    <congress>13</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1814-09-19</session_start>
    <session_end>1815-03-03</session_end>
    <as_of>1814-09-19</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>26</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>13-3rd-session-1</id>
    <congress>13</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1814-09-19</session_start>
    <session_end>1815-03-03</session_end>
    <as_of>1815-01-02</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>25</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>10</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Anti-Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>14-1st-session-0</id>
    <congress>14</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1815-12-04</session_start>
    <session_end>1816-04-30</session_end>
    <as_of>1815-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>22</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>11</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Anti-Democratic</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>14-1st-session-1</id>
    <congress>14</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1815-12-04</session_start>
    <session_end>1816-04-30</session_end>
    <as_of>1816-01-22</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>23</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>11</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Anti-Democratic</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>14-1st-session-2</id>
    <congress>14</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1815-12-04</session_start>
    <session_end>1816-04-30</session_end>
    <as_of>1816-02-05</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>23</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>12</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Anti-Democratic</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>36</total_seats>
  </row>
  <row>
    <id>14-2nd-session-0</id>
    <congress>14</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1816-12-02</session_start>
    <session_end>1817-03-03</session_end>
    <as_of>1816-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>24</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>13</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Anti-Democratic</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>38</total_seats>
  </row>
  <row>
    <id>15-special-session-0</id>
    <congress>15</congress>
    <session>Special session</session>
    <session_start>1817-03-04</session_start>
    <session_end>1818-03-06</session_end>
    <as_of>1817-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>25</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>13</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>38</total_seats>
  </row>
  <row>
    <id>15-1st-session-0</id>
    <congress>15</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1817-12-01</session_start>
    <session_end>1818-04-20</session_end>
    <as_of>1817-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>40</total_seats>
  </row>
  <row>
    <id>15-1st-session-1</id>
    <congress>15</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1817-12-01</session_start>
    <session_end>1818-04-20</session_end>
    <as_of>1818-01-21</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>26</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>40</total_seats>
  </row>
  <row>
    <id>15-1st-session-2</id>
    <congress>15</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1817-12-01</session_start>
    <session_end>1818-04-20</session_end>
    <as_of>1818-02-26</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>27</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>40</total_seats>
  </row>
  <row>
    <id>15-2nd-session-0</id>
    <congress>15</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1818-11-16</session_start>
    <session_end>1819-03-03</session_end>
    <as_of>1818-11-16</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>28</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>40</total_seats>
  </row>
  <row>
    <id>15-2nd-session-1</id>
    <congress>15</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1818-11-16</session_start>
    <session_end>1819-03-03</session_end>
    <as_of>1818-12-04</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>30</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>42</total_seats>
  </row>
  <row>
    <id>16-1st-session-0</id>
    <congress>16</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1819-12-06</session_start>
    <session_end>1820-05-15</session_end>
    <as_of>1819-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>33</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>42</total_seats>
  </row>
  <row>
    <id>16-1st-session-1</id>
    <congress>16</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1819-12-06</session_start>
    <session_end>1820-05-15</session_end>
    <as_of>1819-12-14</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>35</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>44</total_seats>
  </row>
  <row>
    <id>16-2nd-session-0</id>
    <congress>16</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1820-11-13</session_start>
    <session_end>1821-03-03</session_end>
    <as_of>1820-11-13</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>46</total_seats>
  </row>
  <row>
    <id>16-2nd-session-1</id>
    <congress>16</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1820-11-13</session_start>
    <session_end>1821-03-03</session_end>
    <as_of>1821-01-20</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>38</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>8</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>46</total_seats>
  </row>
  <row>
    <id>17-1st-session-0</id>
    <congress>17</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1821-12-03</session_start>
    <session_end>1822-05-08</session_end>
    <as_of>1821-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>4</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>17-1st-session-1</id>
    <congress>17</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1821-12-03</session_start>
    <session_end>1822-05-08</session_end>
    <as_of>1822-01-24</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>44</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>4</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>17-1st-session-2</id>
    <congress>17</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1821-12-03</session_start>
    <session_end>1822-05-08</session_end>
    <as_of>1822-02-25</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>4</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>17-2nd-session-0</id>
    <congress>17</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1822-12-02</session_start>
    <session_end>1823-03-03</session_end>
    <as_of>1822-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democratic Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Federalists</party2>
    <party2_seats>4</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>18-1st-session-0</id>
    <congress>18</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1823-12-01</session_start>
    <session_end>1824-05-27</session_end>
    <as_of>1823-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jackson &amp; Crawford Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Adams-Clay Republicans &amp; Federalists</party2>
    <party2_seats>16</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>18-1st-session-1</id>
    <congress>18</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1823-12-01</session_start>
    <session_end>1824-05-27</session_end>
    <as_of>1823-12-10</as_of>
    <change_in_session>1</change_in_session>
    <party1>Jackson &amp; Crawford Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Adams-Clay Republicans &amp; Federalists</party2>
    <party2_seats>15</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>18-1st-session-2</id>
    <congress>18</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1823-12-01</session_start>
    <session_end>1824-05-27</session_end>
    <as_of>1824-01-15</as_of>
    <change_in_session>2</change_in_session>
    <party1>Jackson &amp; Crawford Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Adams-Clay Republicans &amp; Federalists</party2>
    <party2_seats>16</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>18-1st-session-3</id>
    <congress>18</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1823-12-01</session_start>
    <session_end>1824-05-27</session_end>
    <as_of>1824-03-04</as_of>
    <change_in_session>3</change_in_session>
    <party1>Jackson &amp; Crawford Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Adams-Clay Republicans &amp; Federalists</party2>
    <party2_seats>15</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>18-1st-session-4</id>
    <congress>18</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1823-12-01</session_start>
    <session_end>1824-05-27</session_end>
    <as_of>1824-03-24</as_of>
    <change_in_session>4</change_in_session>
    <party1>Jackson &amp; Crawford Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Adams-Clay Republicans &amp; Federalists</party2>
    <party2_seats>16</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>18-2nd-session-0</id>
    <congress>18</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1824-12-06</session_start>
    <session_end>1825-03-03</session_end>
    <as_of>1824-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jackson &amp; Crawford Republicans</party1>
    <party1_seats>32</party1_seats>
    <party2>Adams-Clay Republicans &amp; Federalists</party2>
    <party2_seats>16</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>19-special-session-0</id>
    <congress>19</congress>
    <session>Special session</session>
    <session_start>1825-03-04</session_start>
    <session_end>1825-03-09</session_end>
    <as_of>1825-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>27</party1_seats>
    <party2>Adams</party2>
    <party2_seats>20</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>19-1st-session-0</id>
    <congress>19</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1825-12-05</session_start>
    <session_end>1826-05-22</session_end>
    <as_of>1825-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>26</party1_seats>
    <party2>Adams</party2>
    <party2_seats>21</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>19-1st-session-1</id>
    <congress>19</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1825-12-05</session_start>
    <session_end>1826-05-22</session_end>
    <as_of>1826-01-31</as_of>
    <change_in_session>1</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>26</party1_seats>
    <party2>Adams</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>19-1st-session-2</id>
    <congress>19</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1825-12-05</session_start>
    <session_end>1826-05-22</session_end>
    <as_of>1826-02-22</as_of>
    <change_in_session>2</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>25</party1_seats>
    <party2>Adams</party2>
    <party2_seats>23</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>19-2nd-session-0</id>
    <congress>19</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1826-12-04</session_start>
    <session_end>1827-03-03</session_end>
    <as_of>1826-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>25</party1_seats>
    <party2>Adams</party2>
    <party2_seats>23</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>19-2nd-session-1</id>
    <congress>19</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1826-12-04</session_start>
    <session_end>1827-03-03</session_end>
    <as_of>1827-01-23</as_of>
    <change_in_session>1</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>26</party1_seats>
    <party2>Adams</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>20-1st-session-0</id>
    <congress>20</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1827-12-03</session_start>
    <session_end>1828-05-26</session_end>
    <as_of>1827-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>27</party1_seats>
    <party2>Adams</party2>
    <party2_seats>21</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>20-2nd-session-0</id>
    <congress>20</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1828-12-01</session_start>
    <session_end>1829-03-03</session_end>
    <as_of>1828-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>26</party1_seats>
    <party2>Adams</party2>
    <party2_seats>21</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>21-special-session-0</id>
    <congress>21</congress>
    <session>Special session</session>
    <session_start>1829-03-04</session_start>
    <session_end>1829-03-17</session_end>
    <as_of>1829-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>26</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>21-1st-session-0</id>
    <congress>21</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1829-12-07</session_start>
    <session_end>1830-05-31</session_end>
    <as_of>1829-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>24</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>21-1st-session-1</id>
    <congress>21</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1829-12-07</session_start>
    <session_end>1830-05-31</session_end>
    <as_of>1830-01-13</as_of>
    <change_in_session>1</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>24</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>23</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>21-1st-session-2</id>
    <congress>21</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1829-12-07</session_start>
    <session_end>1830-05-31</session_end>
    <as_of>1830-02-08</as_of>
    <change_in_session>2</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>25</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>23</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>21-2nd-session-0</id>
    <congress>21</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1830-12-06</session_start>
    <session_end>1831-03-03</session_end>
    <as_of>1830-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>25</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>23</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>22-1st-session-0</id>
    <congress>22</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1831-12-05</session_start>
    <session_end>1832-07-16</session_end>
    <as_of>1831-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>24</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>22</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>22-1st-session-1</id>
    <congress>22</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1831-12-05</session_start>
    <session_end>1832-07-16</session_end>
    <as_of>1832-01-03</as_of>
    <change_in_session>1</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>25</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>21</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>22-2nd-session-0</id>
    <congress>22</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1832-12-03</session_start>
    <session_end>1833-03-02</session_end>
    <as_of>1832-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>25</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>21</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>23-1st-session-0</id>
    <congress>23</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1833-12-02</session_start>
    <session_end>1834-06-30</session_end>
    <as_of>1833-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>25</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>20</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>23-1st-session-1</id>
    <congress>23</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1833-12-02</session_start>
    <session_end>1834-06-30</session_end>
    <as_of>1834-01-16</as_of>
    <change_in_session>1</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>26</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>20</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>23-1st-session-2</id>
    <congress>23</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1833-12-02</session_start>
    <session_end>1834-06-30</session_end>
    <as_of>1834-03-05</as_of>
    <change_in_session>2</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>27</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>19</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>23-2nd-session-0</id>
    <congress>23</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1834-12-01</session_start>
    <session_end>1835-03-03</session_end>
    <as_of>1834-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>27</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>19</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>23-2nd-session-1</id>
    <congress>23</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1834-12-01</session_start>
    <session_end>1835-03-03</session_end>
    <as_of>1835-02-06</as_of>
    <change_in_session>1</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>26</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>20</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>24-1st-session-0</id>
    <congress>24</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1835-12-07</session_start>
    <session_end>1836-07-04</session_end>
    <as_of>1835-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>22</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>23</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>24-1st-session-1</id>
    <congress>24</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1835-12-07</session_start>
    <session_end>1836-07-04</session_end>
    <as_of>1836-02-29</as_of>
    <change_in_session>1</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>21</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>23</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>24-1st-session-2</id>
    <congress>24</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1835-12-07</session_start>
    <session_end>1836-07-04</session_end>
    <as_of>1836-03-04</as_of>
    <change_in_session>2</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>21</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>24</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>24-1st-session-3</id>
    <congress>24</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1835-12-07</session_start>
    <session_end>1836-07-04</session_end>
    <as_of>1836-03-14</as_of>
    <change_in_session>3</change_in_session>
    <party1>Anti-Jacksonians</party1>
    <party1_seats>21</party1_seats>
    <party2>Jacksonians</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>48</total_seats>
  </row>
  <row>
    <id>24-2nd-session-0</id>
    <congress>24</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1836-12-05</session_start>
    <session_end>1837-03-03</session_end>
    <as_of>1836-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>27</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>19</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>50</total_seats>
  </row>
  <row>
    <id>24-2nd-session-1</id>
    <congress>24</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1836-12-05</session_start>
    <session_end>1837-03-03</session_end>
    <as_of>1836-12-15</as_of>
    <change_in_session>1</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>29</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>19</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>50</total_seats>
  </row>
  <row>
    <id>24-2nd-session-2</id>
    <congress>24</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1836-12-05</session_start>
    <session_end>1837-03-03</session_end>
    <as_of>1837-01-26</as_of>
    <change_in_session>2</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>31</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>19</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>24-2nd-session-3</id>
    <congress>24</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1836-12-05</session_start>
    <session_end>1837-03-03</session_end>
    <as_of>1837-02-02</as_of>
    <change_in_session>3</change_in_session>
    <party1>Jacksonians</party1>
    <party1_seats>32</party1_seats>
    <party2>Anti-Jacksonians</party2>
    <party2_seats>18</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Nullifiers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>25-special-session-0</id>
    <congress>25</congress>
    <session>Special session</session>
    <session_start>1837-03-04</session_start>
    <session_end>1837-03-10</session_end>
    <as_of>1837-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>17</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>25-1st-session-0</id>
    <congress>25</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1837-09-04</session_start>
    <session_end>1837-10-16</session_end>
    <as_of>1837-09-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>17</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>25-2nd-session-0</id>
    <congress>25</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1837-12-04</session_start>
    <session_end>1838-07-09</session_end>
    <as_of>1837-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>17</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>25-2nd-session-1</id>
    <congress>25</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1837-12-04</session_start>
    <session_end>1838-07-09</session_end>
    <as_of>1838-02-19</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>16</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>25-3rd-session-0</id>
    <congress>25</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1838-12-03</session_start>
    <session_end>1839-03-03</session_end>
    <as_of>1838-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>17</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>26-1st-session-0</id>
    <congress>26</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1839-12-02</session_start>
    <session_end>1840-07-21</session_end>
    <as_of>1839-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>29</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>19</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>4</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>26-1st-session-1</id>
    <congress>26</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1839-12-02</session_start>
    <session_end>1840-07-21</session_end>
    <as_of>1840-01-16</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>30</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>19</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>3</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>26-1st-session-2</id>
    <congress>26</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1839-12-02</session_start>
    <session_end>1840-07-21</session_end>
    <as_of>1840-02-07</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>30</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>20</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>26-1st-session-3</id>
    <congress>26</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1839-12-02</session_start>
    <session_end>1840-07-21</session_end>
    <as_of>1840-02-26</as_of>
    <change_in_session>3</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>31</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>19</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>26-2nd-session-0</id>
    <congress>26</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1840-12-07</session_start>
    <session_end>1841-03-03</session_end>
    <as_of>1840-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>29</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>26-2nd-session-1</id>
    <congress>26</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1840-12-07</session_start>
    <session_end>1841-03-03</session_end>
    <as_of>1841-01-19</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>29</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>26-2nd-session-2</id>
    <congress>26</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1840-12-07</session_start>
    <session_end>1841-03-03</session_end>
    <as_of>1841-01-30</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>29</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>23</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>27-special-session-0</id>
    <congress>27</congress>
    <session>Special session</session>
    <session_start>1841-03-04</session_start>
    <session_end>1841-03-15</session_end>
    <as_of>1841-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>29</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>27-1st-session-0</id>
    <congress>27</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1841-05-31</session_start>
    <session_end>1841-09-13</session_end>
    <as_of>1841-05-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>29</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>27-2nd-session-0</id>
    <congress>27</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1841-12-06</session_start>
    <session_end>1842-08-31</session_end>
    <as_of>1841-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>29</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>27-2nd-session-1</id>
    <congress>27</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1841-12-06</session_start>
    <session_end>1842-08-31</session_end>
    <as_of>1842-04-14</as_of>
    <change_in_session>1</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>30</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>21</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>27-3rd-session-0</id>
    <congress>27</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1842-12-05</session_start>
    <session_end>1843-03-03</session_end>
    <as_of>1842-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>29</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>22</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>28-1st-session-0</id>
    <congress>28</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1843-12-04</session_start>
    <session_end>1844-06-17</session_end>
    <as_of>1843-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>28</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>23</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>28-1st-session-1</id>
    <congress>28</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1843-12-04</session_start>
    <session_end>1844-06-17</session_end>
    <as_of>1844-02-07</as_of>
    <change_in_session>1</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>27</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>23</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Law &amp; Order</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>28-1st-session-2</id>
    <congress>28</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1843-12-04</session_start>
    <session_end>1844-06-17</session_end>
    <as_of>1844-03-04</as_of>
    <change_in_session>2</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>28</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>23</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Law &amp; Order</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>28-2nd-session-0</id>
    <congress>28</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1844-12-02</session_start>
    <session_end>1845-03-03</session_end>
    <as_of>1844-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Whigs</party1>
    <party1_seats>27</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>24</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Law &amp; Order</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>29-special-session-0</id>
    <congress>29</congress>
    <session>Special session</session>
    <session_start>1845-03-04</session_start>
    <session_end>1845-03-20</session_end>
    <as_of>1845-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>26</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>52</total_seats>
  </row>
  <row>
    <id>29-1st-session-0</id>
    <congress>29</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1845-12-01</session_start>
    <session_end>1846-08-10</session_end>
    <as_of>1845-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>30</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>54</total_seats>
  </row>
  <row>
    <id>29-1st-session-1</id>
    <congress>29</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1845-12-01</session_start>
    <session_end>1846-08-10</session_end>
    <as_of>1846-03-30</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>32</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>56</total_seats>
  </row>
  <row>
    <id>29-1st-session-2</id>
    <congress>29</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1845-12-01</session_start>
    <session_end>1846-08-10</session_end>
    <as_of>1846-06-22</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>31</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberty</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>56</total_seats>
  </row>
  <row>
    <id>29-2nd-session-0</id>
    <congress>29</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1846-12-07</session_start>
    <session_end>1847-03-03</session_end>
    <as_of>1846-12-14</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>30</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>25</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberty</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>56</total_seats>
  </row>
  <row>
    <id>29-2nd-session-1</id>
    <congress>29</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1846-12-07</session_start>
    <session_end>1847-03-03</session_end>
    <as_of>1847-02-03</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>31</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberty</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>56</total_seats>
  </row>
  <row>
    <id>30-1st-session-0</id>
    <congress>30</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1847-12-06</session_start>
    <session_end>1848-08-14</session_end>
    <as_of>1847-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>34</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>56</total_seats>
  </row>
  <row>
    <id>30-1st-session-1</id>
    <congress>30</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1847-12-06</session_start>
    <session_end>1848-08-14</session_end>
    <as_of>1848-06-26</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>58</total_seats>
  </row>
  <row>
    <id>30-2nd-session-0</id>
    <congress>30</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1848-12-04</session_start>
    <session_end>1849-03-03</session_end>
    <as_of>1848-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>58</total_seats>
  </row>
  <row>
    <id>30-2nd-session-1</id>
    <congress>30</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1848-12-04</session_start>
    <session_end>1849-03-03</session_end>
    <as_of>1848-12-26</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>38</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>60</total_seats>
  </row>
  <row>
    <id>31-special-session-0</id>
    <congress>31</congress>
    <session>Special session</session>
    <session_start>1849-03-05</session_start>
    <session_end>1849-03-23</session_end>
    <as_of>1849-03-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>33</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>60</total_seats>
  </row>
  <row>
    <id>31-1st-session-0</id>
    <congress>31</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1849-12-03</session_start>
    <session_end>1850-09-30</session_end>
    <as_of>1849-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>33</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>60</total_seats>
  </row>
  <row>
    <id>31-1st-session-1</id>
    <congress>31</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1849-12-03</session_start>
    <session_end>1850-09-30</session_end>
    <as_of>1850-09-10</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>31-2nd-session-0</id>
    <congress>31</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1850-12-02</session_start>
    <session_end>1851-03-03</session_end>
    <as_of>1850-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>31-2nd-session-1</id>
    <congress>31</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1850-12-02</session_start>
    <session_end>1851-03-03</session_end>
    <as_of>1851-02-07</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-special-session-0</id>
    <congress>32</congress>
    <session>Special session</session>
    <session_start>1851-03-04</session_start>
    <session_end>1851-03-13</session_end>
    <as_of>1851-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>34</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>22</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>4</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-1st-session-0</id>
    <congress>32</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1851-12-01</session_start>
    <session_end>1852-08-31</session_end>
    <as_of>1851-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>34</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>23</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-1st-session-1</id>
    <congress>32</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1851-12-01</session_start>
    <session_end>1852-08-31</session_end>
    <as_of>1852-03-11</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>33</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-1st-session-2</id>
    <congress>32</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1851-12-01</session_start>
    <session_end>1852-08-31</session_end>
    <as_of>1852-03-17</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>34</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-1st-session-3</id>
    <congress>32</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1851-12-01</session_start>
    <session_end>1852-08-31</session_end>
    <as_of>1852-05-14</as_of>
    <change_in_session>3</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>24</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-1st-session-4</id>
    <congress>32</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1851-12-01</session_start>
    <session_end>1852-08-31</session_end>
    <as_of>1852-06-11</as_of>
    <change_in_session>4</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>23</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-1st-session-5</id>
    <congress>32</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1851-12-01</session_start>
    <session_end>1852-08-31</session_end>
    <as_of>1852-07-15</as_of>
    <change_in_session>5</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>22</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>32-2nd-session-0</id>
    <congress>32</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1852-12-06</session_start>
    <session_end>1853-03-03</session_end>
    <as_of>1852-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>23</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-special-session-0</id>
    <congress>33</congress>
    <session>Special session</session>
    <session_start>1853-03-04</session_start>
    <session_end>1853-04-11</session_end>
    <as_of>1853-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>4</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-1st-session-0</id>
    <congress>33</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1853-12-05</session_start>
    <session_end>1854-08-07</session_end>
    <as_of>1853-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-1st-session-1</id>
    <congress>33</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1853-12-05</session_start>
    <session_end>1854-08-07</session_end>
    <as_of>1854-01-26</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-1st-session-2</id>
    <congress>33</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1853-12-05</session_start>
    <session_end>1854-08-07</session_end>
    <as_of>1854-02-23</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>22</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-1st-session-3</id>
    <congress>33</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1853-12-05</session_start>
    <session_end>1854-08-07</session_end>
    <as_of>1854-03-17</as_of>
    <change_in_session>3</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>21</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Free Soilers</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-1st-session-4</id>
    <congress>33</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1853-12-05</session_start>
    <session_end>1854-08-07</session_end>
    <as_of>1854-05-25</as_of>
    <change_in_session>4</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>20</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Free Soilers</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-2nd-session-0</id>
    <congress>33</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1854-12-04</session_start>
    <session_end>1855-03-03</session_end>
    <as_of>1854-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>20</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>4 Free Soilers</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>33-2nd-session-1</id>
    <congress>33</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1854-12-04</session_start>
    <session_end>1855-03-03</session_end>
    <as_of>1855-02-10</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Whigs</party2>
    <party2_seats>19</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>4 Free Soilers, 1 American</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>34-1st-session-0</id>
    <congress>34</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1855-12-03</session_start>
    <session_end>1856-08-18</session_end>
    <as_of>1855-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>35</party1_seats>
    <party2>Opposition</party2>
    <party2_seats>22</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 American</other_parties>
    <vacant_seats>4</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>34-1st-session-1</id>
    <congress>34</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1855-12-03</session_start>
    <session_end>1856-08-18</session_end>
    <as_of>1856-01-28</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Opposition</party2>
    <party2_seats>22</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 American</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>34-2nd-session-0</id>
    <congress>34</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1856-08-21</session_start>
    <session_end>1856-08-30</session_end>
    <as_of>1856-08-21</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Opposition</party2>
    <party2_seats>22</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 American</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>34-3rd-session-0</id>
    <congress>34</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1856-12-01</session_start>
    <session_end>1857-03-03</session_end>
    <as_of>1856-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Opposition</party2>
    <party2_seats>22</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 American</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>34-3rd-session-1</id>
    <congress>34</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1856-12-01</session_start>
    <session_end>1857-03-03</session_end>
    <as_of>1857-01-29</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Opposition</party2>
    <party2_seats>20</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>1 American, 2 Republicans</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>34-3rd-session-2</id>
    <congress>34</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1856-12-01</session_start>
    <session_end>1857-03-03</session_end>
    <as_of>1857-02-09</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>39</party1_seats>
    <party2>Opposition</party2>
    <party2_seats>20</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>1 American, 2 Republicans</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>35-1st-special-session-0</id>
    <congress>35</congress>
    <session>1st special session</session>
    <session_number>1</session_number>
    <session_start>1857-03-04</session_start>
    <session_end>1857-03-14</session_end>
    <as_of>1857-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>20</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>5 Americans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>35-1st-session-0</id>
    <congress>35</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1857-12-07</session_start>
    <session_end>1858-06-14</session_end>
    <as_of>1857-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>37</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>20</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>5 Americans</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>62</total_seats>
  </row>
  <row>
    <id>35-1st-session-1</id>
    <congress>35</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1857-12-07</session_start>
    <session_end>1858-06-14</session_end>
    <as_of>1858-05-12</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>39</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>20</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>5 Americans</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>64</total_seats>
  </row>
  <row>
    <id>35-2nd-special-session-0</id>
    <congress>35</congress>
    <session>2nd special session</session>
    <session_number>2</session_number>
    <session_start>1858-06-15</session_start>
    <session_end>1858-06-16</session_end>
    <as_of>1858-06-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>39</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>20</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>5 Americans</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>64</total_seats>
  </row>
  <row>
    <id>35-2nd-session-0</id>
    <congress>35</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1858-12-06</session_start>
    <session_end>1859-03-03</session_end>
    <as_of>1858-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>39</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>20</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>5 Americans</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>64</total_seats>
  </row>
  <row>
    <id>35-2nd-session-1</id>
    <congress>35</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1858-12-06</session_start>
    <session_end>1859-03-03</session_end>
    <as_of>1859-02-14</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>41</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>20</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>5 Americans</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>66</total_seats>
  </row>
  <row>
    <id>36-1st-special-session-0</id>
    <congress>36</congress>
    <session>1st special session</session>
    <session_number>1</session_number>
    <session_start>1859-03-04</session_start>
    <session_end>1859-03-10</session_end>
    <as_of>1859-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>38</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 American</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>66</total_seats>
  </row>
  <row>
    <id>36-1st-session-0</id>
    <congress>36</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1859-12-05</session_start>
    <session_end>1860-06-25</session_end>
    <as_of>1859-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>38</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 American</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>66</total_seats>
  </row>
  <row>
    <id>36-2nd-special-session-0</id>
    <congress>36</congress>
    <session>2nd special session</session>
    <session_number>2</session_number>
    <session_start>1860-06-26</session_start>
    <session_end>1860-06-28</session_end>
    <as_of>1860-06-26</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>38</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 American</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>66</total_seats>
  </row>
  <row>
    <id>36-2nd-session-0</id>
    <congress>36</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1860-12-03</session_start>
    <session_end>1861-03-03</session_end>
    <as_of>1860-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>36</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>26</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 American</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>66</total_seats>
  </row>
  <row>
    <id>36-2nd-session-1</id>
    <congress>36</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1860-12-03</session_start>
    <session_end>1861-03-03</session_end>
    <as_of>1861-02-04</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>26</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>26</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 American</other_parties>
    <vacant_seats>12</vacant_seats>
    <total_seats>66</total_seats>
  </row>
  <row>
    <id>37-special-session-0</id>
    <congress>37</congress>
    <session>Special session</session>
    <session_start>1861-03-04</session_start>
    <session_end>1861-03-28</session_end>
    <as_of>1861-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>29</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>22</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Unionist</other_parties>
    <vacant_seats>14</vacant_seats>
    <total_seats>66</total_seats>
  </row>
  <row>
    <id>37-1st-session-0</id>
    <congress>37</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1861-07-04</session_start>
    <session_end>1861-08-06</session_end>
    <as_of>1861-07-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>32</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>14</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Unionists</other_parties>
    <vacant_seats>19</vacant_seats>
    <total_seats>68</total_seats>
  </row>
  <row>
    <id>37-2nd-session-0</id>
    <congress>37</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1861-12-02</session_start>
    <session_end>1862-07-17</session_end>
    <as_of>1861-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>30</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>14</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Unionists</other_parties>
    <vacant_seats>21</vacant_seats>
    <total_seats>68</total_seats>
  </row>
  <row>
    <id>37-2nd-session-1</id>
    <congress>37</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1861-12-02</session_start>
    <session_end>1862-07-17</session_end>
    <as_of>1862-06-02</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>31</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>10</party2_seats>
    <other_seats>7</other_seats>
    <other_parties>7 Unionists</other_parties>
    <vacant_seats>20</vacant_seats>
    <total_seats>68</total_seats>
  </row>
  <row>
    <id>37-3rd-session-0</id>
    <congress>37</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1862-12-01</session_start>
    <session_end>1863-03-03</session_end>
    <as_of>1862-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>32</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>9</party2_seats>
    <other_seats>7</other_seats>
    <other_parties>7 Unionists</other_parties>
    <vacant_seats>20</vacant_seats>
    <total_seats>68</total_seats>
  </row>
  <row>
    <id>37-3rd-session-1</id>
    <congress>37</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1862-12-01</session_start>
    <session_end>1863-03-03</session_end>
    <as_of>1863-01-30</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>30</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>11</party2_seats>
    <other_seats>7</other_seats>
    <other_parties>7 Unionists</other_parties>
    <vacant_seats>20</vacant_seats>
    <total_seats>68</total_seats>
  </row>
  <row>
    <id>38-special-session-0</id>
    <congress>38</congress>
    <session>Special session</session>
    <session_start>1863-03-04</session_start>
    <session_end>1863-03-14</session_end>
    <as_of>1863-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>7</other_seats>
    <other_parties>5 Unionists, 2 Unconditional Unionists</other_parties>
    <vacant_seats>20</vacant_seats>
    <total_seats>68</total_seats>
  </row>
  <row>
    <id>38-1st-session-0</id>
    <congress>38</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1863-12-07</session_start>
    <session_end>1864-07-04</session_end>
    <as_of>1863-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>9</other_seats>
    <other_parties>5 Unionists, 4 Unconditional Unionists</other_parties>
    <vacant_seats>20</vacant_seats>
    <total_seats>70</total_seats>
  </row>
  <row>
    <id>38-1st-session-1</id>
    <congress>38</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1863-12-07</session_start>
    <session_end>1864-07-04</session_end>
    <as_of>1864-01-02</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>8</other_seats>
    <other_parties>3 Unionists, 5 Unconditional Unionists</other_parties>
    <vacant_seats>21</vacant_seats>
    <total_seats>70</total_seats>
  </row>
  <row>
    <id>38-2nd-session-0</id>
    <congress>38</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1864-12-05</session_start>
    <session_end>1865-03-03</session_end>
    <as_of>1864-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>31</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>8</other_seats>
    <other_parties>3 Unionists, 5 Unconditional Unionists</other_parties>
    <vacant_seats>21</vacant_seats>
    <total_seats>70</total_seats>
  </row>
  <row>
    <id>39-1st-session-1</id>
    <congress>39</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1865-12-04</session_start>
    <session_end>1866-07-28</session_end>
    <as_of>1865-01-20</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>2 Unconditional Unionists, 1 Unionist</other_parties>
    <vacant_seats>22</vacant_seats>
    <total_seats>72</total_seats>
  </row>
  <row>
    <id>38-2nd-session-1</id>
    <congress>38</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1864-12-05</session_start>
    <session_end>1865-03-03</session_end>
    <as_of>1865-02-01</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>33</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>8</other_seats>
    <other_parties>3 Unionists, 5 Unconditional Unionists</other_parties>
    <vacant_seats>21</vacant_seats>
    <total_seats>72</total_seats>
  </row>
  <row>
    <id>39-special-session-0</id>
    <congress>39</congress>
    <session>Special session</session>
    <session_start>1865-03-04</session_start>
    <session_end>1865-03-11</session_end>
    <as_of>1865-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>9</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>1 Unionist, 2 Unconditional Unionists</other_parties>
    <vacant_seats>23</vacant_seats>
    <total_seats>72</total_seats>
  </row>
  <row>
    <id>39-1st-session-0</id>
    <congress>39</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1865-12-04</session_start>
    <session_end>1866-07-28</session_end>
    <as_of>1865-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>36</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>2 Unconditional Unionists, 1 Unionist</other_parties>
    <vacant_seats>23</vacant_seats>
    <total_seats>72</total_seats>
  </row>
  <row>
    <id>39-1st-session-2</id>
    <congress>39</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1865-12-04</session_start>
    <session_end>1866-07-28</session_end>
    <as_of>1866-03-27</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>9</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>2 Unconditional Unionists, 1 Unionist</other_parties>
    <vacant_seats>23</vacant_seats>
    <total_seats>72</total_seats>
  </row>
  <row>
    <id>39-1st-session-3</id>
    <congress>39</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1865-12-04</session_start>
    <session_end>1866-07-28</session_end>
    <as_of>1866-07-28</as_of>
    <change_in_session>3</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>9</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>3 Unconditional Unionists, 2 Unionists</other_parties>
    <vacant_seats>21</vacant_seats>
    <total_seats>72</total_seats>
  </row>
  <row>
    <id>39-2nd-session-0</id>
    <congress>39</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1866-12-03</session_start>
    <session_end>1867-03-03</session_end>
    <as_of>1866-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>8</party2_seats>
    <other_seats>5</other_seats>
    <other_parties>2 Unionists, 3 Unconditional Unionists</other_parties>
    <vacant_seats>20</vacant_seats>
    <total_seats>72</total_seats>
  </row>
  <row>
    <id>40-1st-session-0</id>
    <congress>40</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1867-03-04</session_start>
    <session_end>1867-12-01</session_end>
    <as_of>1867-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>45</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>8</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>21</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>40-special-session-0</id>
    <congress>40</congress>
    <session>Special session</session>
    <session_start>1867-04-01</session_start>
    <session_end>1867-04-20</session_end>
    <as_of>1867-04-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>45</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>8</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>21</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>40-2nd-session-0</id>
    <congress>40</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1867-12-02</session_start>
    <session_end>1868-11-10</session_end>
    <as_of>1867-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>45</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>8</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>21</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>40-2nd-session-1</id>
    <congress>40</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1867-12-02</session_start>
    <session_end>1868-11-10</session_end>
    <as_of>1868-03-09</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>45</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>20</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>40-2nd-session-2</id>
    <congress>40</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1867-12-02</session_start>
    <session_end>1868-11-10</session_end>
    <as_of>1868-06-23</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>8</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>40-3rd-session-0</id>
    <congress>40</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1868-12-07</session_start>
    <session_end>1869-03-03</session_end>
    <as_of>1868-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>9</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>8</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>41-1st-session-0</id>
    <congress>41</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1869-03-04</session_start>
    <session_end>1869-04-10</session_end>
    <as_of>1869-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>8</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>41-special-session-0</id>
    <congress>41</congress>
    <session>Special session</session>
    <session_start>1869-04-12</session_start>
    <session_end>1869-04-22</session_end>
    <as_of>1869-04-12</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>8</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>41-2nd-session-0</id>
    <congress>41</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1869-12-06</session_start>
    <session_end>1870-07-15</session_end>
    <as_of>1869-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>8</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>41-2nd-session-1</id>
    <congress>41</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1869-12-06</session_start>
    <session_end>1870-07-15</session_end>
    <as_of>1870-01-26</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>61</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>11</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>41-3rd-session-0</id>
    <congress>41</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1870-12-05</session_start>
    <session_end>1871-03-03</session_end>
    <as_of>1870-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>62</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>10</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>41-3rd-session-1</id>
    <congress>41</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1870-12-05</session_start>
    <session_end>1871-03-03</session_end>
    <as_of>1871-01-25</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>61</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>11</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>41-3rd-session-2</id>
    <congress>41</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1870-12-05</session_start>
    <session_end>1871-03-03</session_end>
    <as_of>1871-02-01</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>62</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>12</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>42-1st-session-0</id>
    <congress>42</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1871-03-04</session_start>
    <session_end>1871-04-20</session_end>
    <as_of>1871-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>14</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberal Republican</other_parties>
    <vacant_seats>4</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>42-special-session-0</id>
    <congress>42</congress>
    <session>Special session</session>
    <session_start>1871-05-10</session_start>
    <session_end>1871-05-27</session_end>
    <as_of>1871-05-10</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>14</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberal Republican</other_parties>
    <vacant_seats>4</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>42-2nd-session-0</id>
    <congress>42</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1871-12-04</session_start>
    <session_end>1872-06-10</session_end>
    <as_of>1871-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>14</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberal Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>42-2nd-session-1</id>
    <congress>42</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1871-12-04</session_start>
    <session_end>1872-06-10</session_end>
    <as_of>1871-12-19</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>15</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberal Republican</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>42-2nd-session-2</id>
    <congress>42</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1871-12-04</session_start>
    <session_end>1872-06-10</session_end>
    <as_of>1872-01-15</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>16</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberal Republican</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>42-2nd-session-3</id>
    <congress>42</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1871-12-04</session_start>
    <session_end>1872-06-10</session_end>
    <as_of>1872-04-24</as_of>
    <change_in_session>3</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>17</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberal Republican</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>42-3rd-session-0</id>
    <congress>42</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1872-12-02</session_start>
    <session_end>1873-03-03</session_end>
    <as_of>1872-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>17</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Liberal Republican</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>43-special-session-0</id>
    <congress>43</congress>
    <session>Special session</session>
    <session_start>1873-03-04</session_start>
    <session_end>1873-03-26</session_end>
    <as_of>1873-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>19</party2_seats>
    <other_seats>7</other_seats>
    <other_parties>7 Liberal Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>43-1st-session-0</id>
    <congress>43</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1873-12-01</session_start>
    <session_end>1874-06-23</session_end>
    <as_of>1873-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>19</party2_seats>
    <other_seats>7</other_seats>
    <other_parties>7 Liberal Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>43-1st-session-1</id>
    <congress>43</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1873-12-01</session_start>
    <session_end>1874-06-23</session_end>
    <as_of>1874-04-17</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>19</party2_seats>
    <other_seats>6</other_seats>
    <other_parties>6 Liberal Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>43-2nd-session-0</id>
    <congress>43</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1874-12-07</session_start>
    <session_end>1875-03-03</session_end>
    <as_of>1874-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>19</party2_seats>
    <other_seats>6</other_seats>
    <other_parties>6 Liberal Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>43-2nd-session-1</id>
    <congress>43</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1874-12-07</session_start>
    <session_end>1875-03-03</session_end>
    <as_of>1875-02-13</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>20</party2_seats>
    <other_seats>6</other_seats>
    <other_parties>6 Liberal Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>44-special-session-0</id>
    <congress>44</congress>
    <session>Special session</session>
    <session_start>1875-03-05</session_start>
    <session_end>1875-03-24</session_end>
    <as_of>1875-03-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>44</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>28</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>44-1st-session-0</id>
    <congress>44</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1875-12-06</session_start>
    <session_end>1876-08-15</session_end>
    <as_of>1875-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>29</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>74</total_seats>
  </row>
  <row>
    <id>44-2nd-session-0</id>
    <congress>44</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1876-12-04</session_start>
    <session_end>1877-03-03</session_end>
    <as_of>1876-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>45</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>29</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>45-special-session-0</id>
    <congress>45</congress>
    <session>Special session</session>
    <session_start>1877-03-04</session_start>
    <session_end>1877-03-17</session_end>
    <as_of>1877-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>45-1st-session-0</id>
    <congress>45</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1877-10-15</session_start>
    <session_end>1877-12-03</session_end>
    <as_of>1877-10-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>45-1st-session-1</id>
    <congress>45</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1877-10-15</session_start>
    <session_end>1877-12-03</session_end>
    <as_of>1877-11-12</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>35</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>45-2nd-session-0</id>
    <congress>45</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1877-12-03</session_start>
    <session_end>1878-06-20</session_end>
    <as_of>1877-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>45-3rd-session-0</id>
    <congress>45</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1878-12-02</session_start>
    <session_end>1879-03-03</session_end>
    <as_of>1878-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent Republican</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>46-1st-session-0</id>
    <congress>46</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1879-03-18</session_start>
    <session_end>1879-07-01</session_end>
    <as_of>1879-03-18</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>42</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>33</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>46-2nd-session-0</id>
    <congress>46</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1879-12-01</session_start>
    <session_end>1880-06-16</session_end>
    <as_of>1879-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>42</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>33</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>46-3rd-session-0</id>
    <congress>46</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1880-12-06</session_start>
    <session_end>1881-03-03</session_end>
    <as_of>1880-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>42</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>33</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>47-1st-special-session-0</id>
    <congress>47</congress>
    <session>1st special session</session>
    <session_number>1</session_number>
    <session_start>1881-03-04</session_start>
    <session_end>1881-05-20</session_end>
    <as_of>1881-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Readjustor</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>47-1st-special-session-1</id>
    <congress>47</congress>
    <session>1st special session</session>
    <session_number>1</session_number>
    <session_start>1881-03-04</session_start>
    <session_end>1881-05-20</session_end>
    <as_of>1881-05-16</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>35</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Readjustor</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>47-2nd-special-session-0</id>
    <congress>47</congress>
    <session>2nd special session</session>
    <session_number>2</session_number>
    <session_start>1881-10-10</session_start>
    <session_end>1881-10-29</session_end>
    <as_of>1881-10-10</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>34</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Readjustor</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>47-2nd-special-session-1</id>
    <congress>47</congress>
    <session>2nd special session</session>
    <session_number>2</session_number>
    <session_start>1881-10-10</session_start>
    <session_end>1881-10-29</session_end>
    <as_of>1881-10-11</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Readjustor</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>47-1st-session-0</id>
    <congress>47</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1881-12-05</session_start>
    <session_end>1882-08-08</session_end>
    <as_of>1881-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Readjustor</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>47-2nd-session-0</id>
    <congress>47</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1882-12-04</session_start>
    <session_end>1883-03-03</session_end>
    <as_of>1882-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>37</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Readjustor</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>48-1st-session-0</id>
    <congress>48</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1883-12-03</session_start>
    <session_end>1884-07-07</session_end>
    <as_of>1883-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>38</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Readjustors</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>48-2nd-session-0</id>
    <congress>48</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1884-12-01</session_start>
    <session_end>1885-03-03</session_end>
    <as_of>1884-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>38</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Readjustors</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>49-special-session-0</id>
    <congress>49</congress>
    <session>Special session</session>
    <session_start>1885-03-04</session_start>
    <session_end>1885-04-02</session_end>
    <as_of>1885-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>41</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>34</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>49-1st-session-0</id>
    <congress>49</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1885-12-07</session_start>
    <session_end>1886-08-05</session_end>
    <as_of>1885-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>42</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>34</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>49-1st-session-1</id>
    <congress>49</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1885-12-07</session_start>
    <session_end>1886-08-05</session_end>
    <as_of>1886-04-09</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>41</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>35</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>49-2nd-session-0</id>
    <congress>49</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1886-12-06</session_start>
    <session_end>1887-03-03</session_end>
    <as_of>1886-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>42</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>34</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>50-1st-session-0</id>
    <congress>50</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1887-12-05</session_start>
    <session_end>1888-10-20</session_end>
    <as_of>1887-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>50-2nd-session-0</id>
    <congress>50</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1888-12-03</session_start>
    <session_end>1889-03-03</session_end>
    <as_of>1888-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>51-special-session-0</id>
    <congress>51</congress>
    <session>Special session</session>
    <session_start>1889-03-04</session_start>
    <session_end>1889-04-02</session_end>
    <as_of>1889-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>39</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>76</total_seats>
  </row>
  <row>
    <id>51-1st-session-0</id>
    <congress>51</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1889-12-02</session_start>
    <session_end>1890-10-01</session_end>
    <as_of>1889-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>45</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>82</total_seats>
  </row>
  <row>
    <id>51-1st-session-1</id>
    <congress>51</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1889-12-02</session_start>
    <session_end>1890-10-01</session_end>
    <as_of>1890-04-17</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>84</total_seats>
  </row>
  <row>
    <id>51-2nd-session-0</id>
    <congress>51</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1890-12-01</session_start>
    <session_end>1891-03-03</session_end>
    <as_of>1890-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>49</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>86</total_seats>
  </row>
  <row>
    <id>51-2nd-session-1</id>
    <congress>51</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1890-12-01</session_start>
    <session_end>1891-03-03</session_end>
    <as_of>1890-12-29</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>52-1st-session-0</id>
    <congress>52</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1891-12-07</session_start>
    <session_end>1892-08-05</session_end>
    <as_of>1891-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>38</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>52-1st-session-1</id>
    <congress>52</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1891-12-07</session_start>
    <session_end>1892-08-05</session_end>
    <as_of>1892-01-07</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>52-2nd-session-0</id>
    <congress>52</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1892-12-05</session_start>
    <session_end>1893-03-03</session_end>
    <as_of>1892-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>53-special-session-0</id>
    <congress>53</congress>
    <session>Special session</session>
    <session_start>1893-03-04</session_start>
    <session_end>1893-04-15</session_end>
    <as_of>1893-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>44</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>3 Populists, 1 Silver Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>53-1st-e-session-0</id>
    <congress>53</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1893-08-07</session_start>
    <session_end>1893-11-03</session_end>
    <as_of>1893-08-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>44</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>3 Populists, 1 Silver Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>53-2nd-session-0</id>
    <congress>53</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1893-12-04</session_start>
    <session_end>1894-08-28</session_end>
    <as_of>1893-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>44</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>3 Populists, 1 Silver Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>53-3rd-session-0</id>
    <congress>53</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1894-12-03</session_start>
    <session_end>1895-03-03</session_end>
    <as_of>1894-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>44</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>3 Populists, 1 Silver Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>53-3rd-session-1</id>
    <congress>53</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1894-12-03</session_start>
    <session_end>1895-03-03</session_end>
    <as_of>1895-01-24</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>43</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>38</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>3 Populists, 1 Silver Republican</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>53-3rd-session-2</id>
    <congress>53</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1894-12-03</session_start>
    <session_end>1895-03-03</session_end>
    <as_of>1895-02-02</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>43</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>41</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>3 Populists, 1 Silver Republican</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>54-1st-session-0</id>
    <congress>54</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1895-12-02</session_start>
    <session_end>1896-06-11</session_end>
    <as_of>1895-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>42</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>6</other_seats>
    <other_parties>4 Populists, 2 Silver Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>88</total_seats>
  </row>
  <row>
    <id>54-1st-session-1</id>
    <congress>54</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1895-12-02</session_start>
    <session_end>1896-06-11</session_end>
    <as_of>1896-01-22</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>44</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>6</other_seats>
    <other_parties>4 Populists, 2 Silver Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>54-2nd-session-0</id>
    <congress>54</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1896-12-07</session_start>
    <session_end>1897-03-03</session_end>
    <as_of>1896-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>44</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>6</other_seats>
    <other_parties>4 Populists, 2 Silver Republicans</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>54-2nd-session-1</id>
    <congress>54</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1896-12-07</session_start>
    <session_end>1897-03-03</session_end>
    <as_of>1897-02-05</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>44</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>40</party2_seats>
    <other_seats>6</other_seats>
    <other_parties>4 Populists, 2 Silver Republicans</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>55-special-session-0</id>
    <congress>55</congress>
    <session>Special session</session>
    <session_start>1897-03-04</session_start>
    <session_end>1897-03-10</session_end>
    <as_of>1897-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>12</other_seats>
    <other_parties>5 Populists, 5 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>55-1st-e-session-0</id>
    <congress>55</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1897-03-15</session_start>
    <session_end>1897-07-24</session_end>
    <as_of>1897-03-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>12</other_seats>
    <other_parties>5 Populists, 5 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>55-1st-e-session-1</id>
    <congress>55</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1897-03-15</session_start>
    <session_end>1897-07-24</session_end>
    <as_of>1897-05-25</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>34</party2_seats>
    <other_seats>12</other_seats>
    <other_parties>5 Populists, 5 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>55-2nd-session-0</id>
    <congress>55</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1897-12-06</session_start>
    <session_end>1898-07-08</session_end>
    <as_of>1897-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>43</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>34</party2_seats>
    <other_seats>12</other_seats>
    <other_parties>5 Populists, 5 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>55-3rd-session-0</id>
    <congress>55</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1898-12-05</session_start>
    <session_end>1899-03-03</session_end>
    <as_of>1898-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>44</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>34</party2_seats>
    <other_seats>12</other_seats>
    <other_parties>5 Populists, 5 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>56-1st-session-0</id>
    <congress>56</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1899-12-04</session_start>
    <session_end>1900-06-07</session_end>
    <as_of>1899-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>50</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>26</party2_seats>
    <other_seats>10</other_seats>
    <other_parties>5 Populists, 3 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>4</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>56-1st-session-1</id>
    <congress>56</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1899-12-04</session_start>
    <session_end>1900-06-07</session_end>
    <as_of>1900-03-05</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>26</party2_seats>
    <other_seats>10</other_seats>
    <other_parties>5 Populists, 3 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>56-2nd-session-0</id>
    <congress>56</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1900-12-03</session_start>
    <session_end>1901-03-03</session_end>
    <as_of>1900-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>50</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>27</party2_seats>
    <other_seats>10</other_seats>
    <other_parties>5 Populists, 3 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>56-2nd-session-1</id>
    <congress>56</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1900-12-03</session_start>
    <session_end>1901-03-03</session_end>
    <as_of>1901-01-17</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>27</party2_seats>
    <other_seats>10</other_seats>
    <other_parties>5 Populists, 3 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>56-2nd-session-2</id>
    <congress>56</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1900-12-03</session_start>
    <session_end>1901-03-03</session_end>
    <as_of>1901-01-28</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>52</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>26</party2_seats>
    <other_seats>10</other_seats>
    <other_parties>5 Populists, 3 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>56-2nd-session-3</id>
    <congress>56</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1900-12-03</session_start>
    <session_end>1901-03-03</session_end>
    <as_of>1901-02-04</as_of>
    <change_in_session>3</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>26</party2_seats>
    <other_seats>10</other_seats>
    <other_parties>5 Populists, 3 Silver Republicans, 2 Silverites</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>57-special-session-0</id>
    <congress>57</congress>
    <session>Special session</session>
    <session_start>1901-03-04</session_start>
    <session_end>1901-03-09</session_end>
    <as_of>1901-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>52</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>4 Populists</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>57-1st-session-0</id>
    <congress>57</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1901-12-01</session_start>
    <session_end>1902-07-01</session_end>
    <as_of>1901-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>57-1st-session-1</id>
    <congress>57</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1901-12-01</session_start>
    <session_end>1902-07-01</session_end>
    <as_of>1901-12-27</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>3</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>57-1st-session-2</id>
    <congress>57</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1901-12-01</session_start>
    <session_end>1902-07-01</session_end>
    <as_of>1902-02-04</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>57-2nd-session-0</id>
    <congress>57</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1902-12-01</session_start>
    <session_end>1903-03-03</session_end>
    <as_of>1902-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>57-2nd-session-1</id>
    <congress>57</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1902-12-01</session_start>
    <session_end>1903-03-03</session_end>
    <as_of>1903-03-03</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Populists</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>58-special-session-0</id>
    <congress>58</congress>
    <session>Special session</session>
    <session_start>1903-03-05</session_start>
    <session_end>1903-03-19</session_end>
    <as_of>1903-03-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>58-1st-e-session-0</id>
    <congress>58</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1903-11-09</session_start>
    <session_end>1903-12-07</session_end>
    <as_of>1903-11-09</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>58-2nd-session-0</id>
    <congress>58</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1903-12-07</session_start>
    <session_end>1904-04-28</session_end>
    <as_of>1903-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>58-3rd-session-0</id>
    <congress>58</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1904-12-05</session_start>
    <session_end>1905-03-03</session_end>
    <as_of>1904-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>59-special-session-0</id>
    <congress>59</congress>
    <session>Special session</session>
    <session_start>1905-03-04</session_start>
    <session_end>1905-03-18</session_end>
    <as_of>1905-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>32</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>59-1st-session-0</id>
    <congress>59</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1905-12-04</session_start>
    <session_end>1906-06-30</session_end>
    <as_of>1905-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>59-2nd-session-0</id>
    <congress>59</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1906-12-03</session_start>
    <session_end>1907-03-03</session_end>
    <as_of>1906-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>57</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>59-2nd-session-1</id>
    <congress>59</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1906-12-03</session_start>
    <session_end>1907-03-03</session_end>
    <as_of>1907-01-30</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>58</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>32</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>90</total_seats>
  </row>
  <row>
    <id>61-1st-e-session-0</id>
    <congress>61</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1909-03-15</session_start>
    <session_end>1909-08-05</session_end>
    <as_of>1907-03-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>59</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>32</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>60-1st-session-0</id>
    <congress>60</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1907-12-02</session_start>
    <session_end>1908-05-30</session_end>
    <as_of>1907-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>60</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>60-1st-session-1</id>
    <congress>60</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1907-12-02</session_start>
    <session_end>1908-05-30</session_end>
    <as_of>1908-01-27</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>61</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>60-2nd-session-0</id>
    <congress>60</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1908-12-07</session_start>
    <session_end>1909-03-03</session_end>
    <as_of>1908-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>61</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>31</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>61-special-session-0</id>
    <congress>61</congress>
    <session>Special session</session>
    <session_start>1909-03-04</session_start>
    <session_end>1909-03-06</session_end>
    <as_of>1909-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>58</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>32</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>2</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>61-1st-e-session-1</id>
    <congress>61</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1909-03-15</session_start>
    <session_end>1909-08-05</session_end>
    <as_of>1909-06-18</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>60</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>32</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>61-2nd-session-0</id>
    <congress>61</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1909-12-06</session_start>
    <session_end>1910-06-23</session_end>
    <as_of>1909-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>59</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>61-3rd-session-0</id>
    <congress>61</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1910-12-05</session_start>
    <session_end>1911-03-03</session_end>
    <as_of>1910-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>59</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>62-1st-e-session-0</id>
    <congress>62</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1911-04-04</session_start>
    <session_end>1911-08-22</session_end>
    <as_of>1911-04-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>50</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>41</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>62-2nd-session-0</id>
    <congress>62</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1911-12-04</session_start>
    <session_end>1912-08-26</session_end>
    <as_of>1911-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>49</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>42</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>92</total_seats>
  </row>
  <row>
    <id>62-2nd-session-1</id>
    <congress>62</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1911-12-04</session_start>
    <session_end>1912-08-26</session_end>
    <as_of>1912-04-02</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>62-2nd-session-2</id>
    <congress>62</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1911-12-04</session_start>
    <session_end>1912-08-26</session_end>
    <as_of>1912-04-11</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>52</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>62-3rd-session-0</id>
    <congress>62</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1912-12-02</session_start>
    <session_end>1913-03-03</session_end>
    <as_of>1912-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>62-3rd-session-1</id>
    <congress>62</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1912-12-02</session_start>
    <session_end>1913-03-03</session_end>
    <as_of>1913-01-20</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>63-special-session-0</id>
    <congress>63</congress>
    <session>Special session</session>
    <session_start>1913-03-04</session_start>
    <session_end>1913-03-17</session_end>
    <as_of>1913-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>63-1st-e-session-0</id>
    <congress>63</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1913-04-07</session_start>
    <session_end>1913-11-29</session_end>
    <as_of>1913-04-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>51</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>63-2nd-session-0</id>
    <congress>63</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1913-12-01</session_start>
    <session_end>1914-10-24</session_end>
    <as_of>1913-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>51</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>63-2nd-session-1</id>
    <congress>63</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1913-12-01</session_start>
    <session_end>1914-10-24</session_end>
    <as_of>1914-01-28</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>52</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>63-2nd-session-2</id>
    <congress>63</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1913-12-01</session_start>
    <session_end>1914-10-24</session_end>
    <as_of>1914-06-14</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>63-3rd-session-0</id>
    <congress>63</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1914-12-07</session_start>
    <session_end>1915-03-03</session_end>
    <as_of>1914-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>64-1st-session-0</id>
    <congress>64</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1915-12-06</session_start>
    <session_end>1916-09-08</session_end>
    <as_of>1915-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>40</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>64-2nd-session-0</id>
    <congress>64</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1916-12-04</session_start>
    <session_end>1917-03-03</session_end>
    <as_of>1916-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>55</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>41</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-special-session-0</id>
    <congress>65</congress>
    <session>Special session</session>
    <session_start>1917-03-05</session_start>
    <session_end>1917-03-16</session_end>
    <as_of>1917-03-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-1st-session-0</id>
    <congress>65</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1917-04-02</session_start>
    <session_end>1917-10-06</session_end>
    <as_of>1917-04-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-1st-session-1</id>
    <congress>65</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1917-04-02</session_start>
    <session_end>1917-10-06</session_end>
    <as_of>1917-06-08</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-2nd-session-0</id>
    <congress>65</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1917-12-03</session_start>
    <session_end>1918-11-21</session_end>
    <as_of>1917-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>52</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-2nd-session-1</id>
    <congress>65</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1917-12-03</session_start>
    <session_end>1918-11-21</session_end>
    <as_of>1918-01-30</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-2nd-session-2</id>
    <congress>65</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1917-12-03</session_start>
    <session_end>1918-11-21</session_end>
    <as_of>1918-03-07</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>52</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-2nd-session-3</id>
    <congress>65</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1917-12-03</session_start>
    <session_end>1918-11-21</session_end>
    <as_of>1918-04-18</as_of>
    <change_in_session>3</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>52</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-2nd-session-4</id>
    <congress>65</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1917-12-03</session_start>
    <session_end>1918-11-21</session_end>
    <as_of>1918-11-21</as_of>
    <change_in_session>4</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>51</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>65-3rd-session-0</id>
    <congress>65</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1918-12-02</session_start>
    <session_end>1919-03-03</session_end>
    <as_of>1918-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>51</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>66-1st-e-session-0</id>
    <congress>66</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1919-05-19</session_start>
    <session_end>1919-11-19</session_end>
    <as_of>1919-05-19</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>49</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>66-2nd-session-0</id>
    <congress>66</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1919-12-01</session_start>
    <session_end>1920-06-05</session_end>
    <as_of>1919-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>49</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>66-3rd-session-0</id>
    <congress>66</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1920-12-06</session_start>
    <session_end>1921-03-03</session_end>
    <as_of>1920-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>66-3rd-session-1</id>
    <congress>66</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1920-12-06</session_start>
    <session_end>1921-03-03</session_end>
    <as_of>1921-01-15</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>67-special-session-0</id>
    <congress>67</congress>
    <session>Special session</session>
    <session_start>1921-03-04</session_start>
    <session_end>1921-03-15</session_end>
    <as_of>1921-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>59</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>67-1st-e-session-0</id>
    <congress>67</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1921-04-11</session_start>
    <session_end>1921-11-23</session_end>
    <as_of>1921-04-11</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>59</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>67-1st-e-session-1</id>
    <congress>67</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1921-04-11</session_start>
    <session_end>1921-11-23</session_end>
    <as_of>1921-07-26</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>60</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>67-2nd-session-0</id>
    <congress>67</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1921-12-05</session_start>
    <session_end>1922-09-22</session_end>
    <as_of>1921-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>60</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>67-3rd-e-session-0</id>
    <congress>67</congress>
    <session>3rd (E) session</session>
    <session_number>3</session_number>
    <session_start>1922-11-20</session_start>
    <session_end>1922-12-04</session_end>
    <as_of>1922-11-20</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>59</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>68-2nd-session-0</id>
    <congress>68</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1922-12-01</session_start>
    <session_end>1923-03-03</session_end>
    <as_of>1922-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>52</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>42</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Farmer-Laborites</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>67-4th-session-0</id>
    <congress>67</congress>
    <session>4th session</session>
    <session_number>4</session_number>
    <session_start>1922-12-04</session_start>
    <session_end>1923-03-03</session_end>
    <as_of>1922-12-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>60</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>68-1st-session-0</id>
    <congress>68</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1923-12-03</session_start>
    <session_end>1924-06-07</session_end>
    <as_of>1923-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>43</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Farmer-Laborites</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>69-special-session-0</id>
    <congress>69</congress>
    <session>Special session</session>
    <session_start>1925-03-04</session_start>
    <session_end>1925-03-18</session_end>
    <as_of>1925-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republican</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>40</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>69-1st-session-0</id>
    <congress>69</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1925-12-07</session_start>
    <session_end>1926-07-03</session_end>
    <as_of>1925-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>69-1st-session-1</id>
    <congress>69</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1925-12-07</session_start>
    <session_end>1926-07-03</session_end>
    <as_of>1926-04-12</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>40</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>69-2nd-session-0</id>
    <congress>69</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1926-12-06</session_start>
    <session_end>1927-03-03</session_end>
    <as_of>1926-12-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>42</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>70-1st-session-0</id>
    <congress>70</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1927-12-05</session_start>
    <session_end>1928-05-29</session_end>
    <as_of>1927-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>46</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>70-1st-session-1</id>
    <congress>70</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1927-12-05</session_start>
    <session_end>1928-05-29</session_end>
    <as_of>1928-01-04</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>70-1st-session-2</id>
    <congress>70</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1927-12-05</session_start>
    <session_end>1928-05-29</session_end>
    <as_of>1928-04-05</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>70-1st-session-3</id>
    <congress>70</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1927-12-05</session_start>
    <session_end>1928-05-29</session_end>
    <as_of>1928-04-16</as_of>
    <change_in_session>3</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>70-2nd-session-0</id>
    <congress>70</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1928-12-03</session_start>
    <session_end>1929-03-03</session_end>
    <as_of>1928-12-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>70-2nd-session-1</id>
    <congress>70</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1928-12-03</session_start>
    <session_end>1929-03-03</session_end>
    <as_of>1928-12-15</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>49</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>71-1st-session-0</id>
    <congress>71</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1929-03-04</session_start>
    <session_end>1929-03-05</session_end>
    <as_of>1929-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>71-1st-e-session-0</id>
    <congress>71</congress>
    <session>1st (E) session</session>
    <session_number>1</session_number>
    <session_start>1929-04-15</session_start>
    <session_end>1929-11-22</session_end>
    <as_of>1929-04-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>71-2nd-session-0</id>
    <congress>71</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1929-12-02</session_start>
    <session_end>1930-07-03</session_end>
    <as_of>1929-12-02</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>71-special-session-0</id>
    <congress>71</congress>
    <session>Special session</session>
    <session_start>1930-07-07</session_start>
    <session_end>1930-07-21</session_end>
    <as_of>1930-07-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>56</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>71-3rd-session-0</id>
    <congress>71</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1930-12-01</session_start>
    <session_end>1931-03-03</session_end>
    <as_of>1930-12-01</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>42</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>72-1st-session-0</id>
    <congress>72</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1931-12-07</session_start>
    <session_end>1932-07-16</session_end>
    <as_of>1931-12-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer-Laborite</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>72-1st-session-1</id>
    <congress>72</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1931-12-07</session_start>
    <session_end>1932-07-16</session_end>
    <as_of>1932-01-25</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>72-2nd-session-0</id>
    <congress>72</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1932-12-05</session_start>
    <session_end>1933-03-03</session_end>
    <as_of>1932-12-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>73-special-session-0</id>
    <congress>73</congress>
    <session>Special session</session>
    <session_start>1933-03-04</session_start>
    <session_end>1933-03-06</session_end>
    <as_of>1933-03-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>59</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>36</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>73-1st-session-0</id>
    <congress>73</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1933-03-09</session_start>
    <session_end>1933-06-15</session_end>
    <as_of>1933-03-09</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>59</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>36</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>73-1st-session-1</id>
    <congress>73</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1933-03-09</session_start>
    <session_end>1933-06-15</session_end>
    <as_of>1933-03-11</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>59</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>35</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>73-1st-session-2</id>
    <congress>73</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1933-03-09</session_start>
    <session_end>1933-06-15</session_end>
    <as_of>1933-05-24</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>60</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>35</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>73-2nd-session-0</id>
    <congress>73</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1934-01-03</session_start>
    <session_end>1934-06-18</session_end>
    <as_of>1934-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>60</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>35</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Farmer Laborite</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>74-1st-session-0</id>
    <congress>74</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1935-01-03</session_start>
    <session_end>1935-08-26</session_end>
    <as_of>1935-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>68</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>25</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Farmer-Laborite, 1 Progressive</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>74-1st-session-1</id>
    <congress>74</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1935-01-03</session_start>
    <session_end>1935-08-26</session_end>
    <as_of>1935-05-20</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>69</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>24</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Farmer-Laborite, 1 Progressive</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>74-1st-session-2</id>
    <congress>74</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1935-01-03</session_start>
    <session_end>1935-08-26</session_end>
    <as_of>1935-06-21</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>70</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>24</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Farmer-Laborite, 1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>74-2nd-session-0</id>
    <congress>74</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1936-01-03</session_start>
    <session_end>1937-06-20</session_end>
    <as_of>1936-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>70</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>23</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>75-1st-session-0</id>
    <congress>75</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1937-01-05</session_start>
    <session_end>1937-08-21</session_end>
    <as_of>1937-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>75</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>16</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>75-1st-session-1</id>
    <congress>75</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1937-01-05</session_start>
    <session_end>1937-08-21</session_end>
    <as_of>1937-04-15</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>76</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>16</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>75-2nd-session-0</id>
    <congress>75</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1937-11-15</session_start>
    <session_end>1937-12-21</session_end>
    <as_of>1937-11-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>76</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>16</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>75-3rd-session-0</id>
    <congress>75</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1938-01-03</session_start>
    <session_end>1938-06-16</session_end>
    <as_of>1938-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>76</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>16</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>75-3rd-session-1</id>
    <congress>75</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1938-01-03</session_start>
    <session_end>1938-06-16</session_end>
    <as_of>1938-02-11</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>77</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>15</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>76-1st-session-0</id>
    <congress>76</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1939-01-03</session_start>
    <session_end>1939-08-05</session_end>
    <as_of>1939-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>69</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>23</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>76-2nd-session-0</id>
    <congress>76</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1939-09-21</session_start>
    <session_end>1939-11-03</session_end>
    <as_of>1939-09-21</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>69</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>23</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>76-3rd-session-0</id>
    <congress>76</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1940-01-03</session_start>
    <session_end>1941-01-03</session_end>
    <as_of>1940-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>69</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>23</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>2 Farmer-Laborites, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>76-3rd-session-1</id>
    <congress>76</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1940-01-03</session_start>
    <session_end>1941-01-03</session_end>
    <as_of>1940-08-31</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>69</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>23</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>1 Farmer-Laborite, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>76-3rd-session-2</id>
    <congress>76</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1940-01-03</session_start>
    <session_end>1941-01-03</session_end>
    <as_of>1940-10-17</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>69</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>24</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>1 Farmer-Laborite, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>76-3rd-session-3</id>
    <congress>76</congress>
    <session>3rd session</session>
    <session_number>3</session_number>
    <session_start>1940-01-03</session_start>
    <session_end>1941-01-03</session_end>
    <as_of>1940-11-22</as_of>
    <change_in_session>3</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>68</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>25</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>1 Farmer-Laborite, 1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>77-1st-session-0</id>
    <congress>77</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1941-01-03</session_start>
    <session_end>1942-01-02</session_end>
    <as_of>1941-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>66</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>28</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>77-1st-session-1</id>
    <congress>77</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1941-01-03</session_start>
    <session_end>1942-01-02</session_end>
    <as_of>1941-12-20</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>65</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>29</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>77-2nd-session-0</id>
    <congress>77</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1942-01-05</session_start>
    <session_end>1942-12-16</session_end>
    <as_of>1942-01-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>65</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>29</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>77-2nd-session-1</id>
    <congress>77</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1942-01-05</session_start>
    <session_end>1942-12-16</session_end>
    <as_of>1942-11-18</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>64</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>30</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Progressive, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>78-1st-session-0</id>
    <congress>78</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1943-01-06</session_start>
    <session_end>1943-12-21</session_end>
    <as_of>1943-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>38</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>78-1st-session-1</id>
    <congress>78</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1943-01-06</session_start>
    <session_end>1943-12-21</session_end>
    <as_of>1943-11-29</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>58</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>78-2nd-session-0</id>
    <congress>78</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1944-01-10</session_start>
    <session_end>1944-12-19</session_end>
    <as_of>1944-01-10</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>58</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>78-2nd-session-1</id>
    <congress>78</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1944-01-10</session_start>
    <session_end>1944-12-19</session_end>
    <as_of>1944-12-07</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>38</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>79-1st-session-0</id>
    <congress>79</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1945-01-03</session_start>
    <session_end>1945-12-21</session_end>
    <as_of>1945-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>38</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>79-1st-session-1</id>
    <congress>79</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1945-01-03</session_start>
    <session_end>1945-12-21</session_end>
    <as_of>1945-02-15</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>79-1st-session-2</id>
    <congress>79</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1945-01-03</session_start>
    <session_end>1945-12-21</session_end>
    <as_of>1945-03-19</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>55</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>40</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>79-1st-session-3</id>
    <congress>79</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1945-01-03</session_start>
    <session_end>1945-12-21</session_end>
    <as_of>1945-10-09</as_of>
    <change_in_session>3</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>79-1st-session-4</id>
    <congress>79</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1945-01-03</session_start>
    <session_end>1945-12-21</session_end>
    <as_of>1945-11-23</as_of>
    <change_in_session>4</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>55</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>40</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>79-1st-session-5</id>
    <congress>79</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1945-01-03</session_start>
    <session_end>1945-12-21</session_end>
    <as_of>1945-11-29</as_of>
    <change_in_session>5</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>79-2nd-session-0</id>
    <congress>79</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1946-01-14</session_start>
    <session_end>1946-08-02</session_end>
    <as_of>1946-01-14</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>39</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Progressive</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>80-1st-session-0</id>
    <congress>80</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1947-01-03</session_start>
    <session_end>1947-12-19</session_end>
    <as_of>1947-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>80-1st-session-1</id>
    <congress>80</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1947-01-03</session_start>
    <session_end>1947-12-19</session_end>
    <as_of>1947-11-17</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>80-2nd-session-0</id>
    <congress>80</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1948-01-06</session_start>
    <session_end>1948-12-31</session_end>
    <as_of>1948-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>81-1st-session-0</id>
    <congress>81</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1949-01-03</session_start>
    <session_end>1949-10-19</session_end>
    <as_of>1949-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>81-1st-session-1</id>
    <congress>81</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1949-01-03</session_start>
    <session_end>1949-10-19</session_end>
    <as_of>1949-07-08</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>81-1st-session-2</id>
    <congress>81</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1949-01-03</session_start>
    <session_end>1949-10-19</session_end>
    <as_of>1949-10-17</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>52</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>81-2nd-session-0</id>
    <congress>81</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1950-01-03</session_start>
    <session_end>1951-01-02</session_end>
    <as_of>1950-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>81-2nd-session-1</id>
    <congress>81</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1950-01-03</session_start>
    <session_end>1951-01-02</session_end>
    <as_of>1950-12-04</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>82-1st-session-0</id>
    <congress>82</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1951-01-03</session_start>
    <session_end>1951-10-20</session_end>
    <as_of>1951-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>82-1st-session-1</id>
    <congress>82</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1951-01-03</session_start>
    <session_end>1951-10-20</session_end>
    <as_of>1951-04-25</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>82-2nd-session-0</id>
    <congress>82</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1952-01-08</session_start>
    <session_end>1952-07-07</session_end>
    <as_of>1952-01-08</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>83-1st-session-0</id>
    <congress>83</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1953-01-03</session_start>
    <session_end>1953-08-03</session_end>
    <as_of>1953-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>83-1st-session-1</id>
    <congress>83</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1953-01-03</session_start>
    <session_end>1953-08-03</session_end>
    <as_of>1953-07-31</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>46</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>83-2nd-session-0</id>
    <congress>83</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1954-01-06</session_start>
    <session_end>1954-12-02</session_end>
    <as_of>1954-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>48</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>83-2nd-session-1</id>
    <congress>83</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1954-01-06</session_start>
    <session_end>1954-12-02</session_end>
    <as_of>1954-06-28</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>83-2nd-session-2</id>
    <congress>83</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1954-01-06</session_start>
    <session_end>1954-12-02</session_end>
    <as_of>1954-09-28</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>48</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>2</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>83-2nd-session-3</id>
    <congress>83</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1954-01-06</session_start>
    <session_end>1954-12-02</session_end>
    <as_of>1954-11-08</as_of>
    <change_in_session>3</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>49</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>83-2nd-session-4</id>
    <congress>83</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1954-01-06</session_start>
    <session_end>1954-12-02</session_end>
    <as_of>1954-12-02</as_of>
    <change_in_session>4</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>47</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>48</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>84-1st-session-0</id>
    <congress>84</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1955-01-05</session_start>
    <session_end>1955-08-02</session_end>
    <as_of>1955-01-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>47</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>84-2nd-session-0</id>
    <congress>84</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1956-01-03</session_start>
    <session_end>1956-07-27</session_end>
    <as_of>1956-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>48</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>84-2nd-session-1</id>
    <congress>84</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1956-01-03</session_start>
    <session_end>1956-07-27</session_end>
    <as_of>1956-04-09</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>84-2nd-session-2</id>
    <congress>84</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1956-01-03</session_start>
    <session_end>1956-07-27</session_end>
    <as_of>1956-04-30</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>48</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>84-2nd-session-3</id>
    <congress>84</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1956-01-03</session_start>
    <session_end>1956-07-27</session_end>
    <as_of>1956-06-25</as_of>
    <change_in_session>3</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>85-1st-session-0</id>
    <congress>85</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1957-01-03</session_start>
    <session_end>1957-08-30</session_end>
    <as_of>1957-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>85-1st-session-1</id>
    <congress>85</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1957-01-03</session_start>
    <session_end>1957-08-30</session_end>
    <as_of>1957-05-02</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>85-1st-session-2</id>
    <congress>85</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1957-01-03</session_start>
    <session_end>1957-08-30</session_end>
    <as_of>1957-08-29</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>85-2nd-session-0</id>
    <congress>85</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1958-01-07</session_start>
    <session_end>1958-08-24</session_end>
    <as_of>1958-01-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>85-2nd-session-1</id>
    <congress>85</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1958-01-07</session_start>
    <session_end>1958-08-24</session_end>
    <as_of>1958-01-27</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>96</total_seats>
  </row>
  <row>
    <id>86-1st-session-0</id>
    <congress>86</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1959-01-07</session_start>
    <session_end>1959-09-15</session_end>
    <as_of>1959-01-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>64</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>34</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>98</total_seats>
  </row>
  <row>
    <id>87-1st-session-1</id>
    <congress>87</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1961-01-03</session_start>
    <session_end>1961-09-27</session_end>
    <as_of>1959-06-15</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>64</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>86-1st-session-1</id>
    <congress>86</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1959-01-07</session_start>
    <session_end>1959-09-15</session_end>
    <as_of>1959-08-21</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>65</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>35</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>86-2nd-session-0</id>
    <congress>86</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1960-01-06</session_start>
    <session_end>1960-09-01</session_end>
    <as_of>1960-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>65</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>35</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>86-2nd-session-1</id>
    <congress>86</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1960-01-06</session_start>
    <session_end>1960-09-01</session_end>
    <as_of>1960-08-08</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>66</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>34</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>87-1st-session-0</id>
    <congress>87</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1961-01-03</session_start>
    <session_end>1961-09-27</session_end>
    <as_of>1961-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>65</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>35</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>87-2nd-session-0</id>
    <congress>87</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1962-01-10</session_start>
    <session_end>1962-10-13</session_end>
    <as_of>1962-01-10</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>64</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>88-1st-session-0</id>
    <congress>88</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1963-01-09</session_start>
    <session_end>1963-12-30</session_end>
    <as_of>1963-01-09</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>67</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>88-2nd-session-0</id>
    <congress>88</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1964-01-07</session_start>
    <session_end>1964-10-03</session_end>
    <as_of>1964-01-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>67</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>88-2nd-session-1</id>
    <congress>88</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1964-01-07</session_start>
    <session_end>1964-10-03</session_end>
    <as_of>1964-09-16</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>66</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>34</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>89-1st-session-0</id>
    <congress>89</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1965-01-04</session_start>
    <session_end>1965-10-23</session_end>
    <as_of>1965-01-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>68</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>32</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>89-2nd-session-0</id>
    <congress>89</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1966-01-10</session_start>
    <session_end>1966-10-22</session_end>
    <as_of>1966-01-10</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>68</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>32</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>89-2nd-session-1</id>
    <congress>89</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1966-01-10</session_start>
    <session_end>1966-10-22</session_end>
    <as_of>1966-05-16</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>67</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>33</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>90-1st-session-0</id>
    <congress>90</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1967-01-10</session_start>
    <session_end>1967-12-15</session_end>
    <as_of>1967-01-10</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>64</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>90-2nd-session-0</id>
    <congress>90</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1968-01-15</session_start>
    <session_end>1968-10-14</session_end>
    <as_of>1968-01-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>64</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>90-2nd-session-1</id>
    <congress>90</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1968-01-15</session_start>
    <session_end>1968-10-14</session_end>
    <as_of>1968-06-06</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>63</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>36</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>90-2nd-session-2</id>
    <congress>90</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1968-01-15</session_start>
    <session_end>1968-10-14</session_end>
    <as_of>1968-09-12</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>63</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>91-1st-session-0</id>
    <congress>91</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1969-01-03</session_start>
    <session_end>1969-12-23</session_end>
    <as_of>1969-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>91-2nd-session-0</id>
    <congress>91</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1970-01-19</session_start>
    <session_end>1971-01-02</session_end>
    <as_of>1970-01-19</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>91-2nd-session-1</id>
    <congress>91</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1970-01-19</session_start>
    <session_end>1971-01-02</session_end>
    <as_of>1970-11-17</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>58</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>92-1st-session-0</id>
    <congress>92</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1971-01-21</session_start>
    <session_end>1971-12-17</session_end>
    <as_of>1971-01-21</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>92-2nd-session-0</id>
    <congress>92</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1972-01-18</session_start>
    <session_end>1972-10-18</session_end>
    <as_of>1972-01-18</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>93-1st-session-0</id>
    <congress>93</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1973-01-03</session_start>
    <session_end>1973-12-22</session_end>
    <as_of>1973-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>93-2nd-session-0</id>
    <congress>93</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1974-01-21</session_start>
    <session_end>1974-12-20</session_end>
    <as_of>1974-01-21</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>41</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>94-1st-session-0</id>
    <congress>94</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1975-01-14</session_start>
    <session_end>1975-12-19</session_end>
    <as_of>1975-01-14</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>60</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>94-1st-session-1</id>
    <congress>94</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1975-01-14</session_start>
    <session_end>1975-12-19</session_end>
    <as_of>1975-08-08</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>60</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>38</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>94-1st-session-2</id>
    <congress>94</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1975-01-14</session_start>
    <session_end>1975-12-19</session_end>
    <as_of>1975-09-18</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>61</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>94-2nd-session-0</id>
    <congress>94</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1976-01-19</session_start>
    <session_end>1976-10-01</session_end>
    <as_of>1976-01-19</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>61</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>37</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Conservative, 1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>95-1st-session-0</id>
    <congress>95</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1977-01-04</session_start>
    <session_end>1977-12-15</session_end>
    <as_of>1977-01-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>61</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>38</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>95-2nd-session-0</id>
    <congress>95</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1978-01-19</session_start>
    <session_end>1978-10-15</session_end>
    <as_of>1978-01-19</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>61</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>38</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>96-1st-session-0</id>
    <congress>96</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1979-01-15</session_start>
    <session_end>1980-01-03</session_end>
    <as_of>1979-01-15</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>58</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>41</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>96-2nd-session-0</id>
    <congress>96</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1980-01-03</session_start>
    <session_end>1980-12-16</session_end>
    <as_of>1980-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>58</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>41</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>97-1st-session-0</id>
    <congress>97</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1981-01-05</session_start>
    <session_end>1981-12-16</session_end>
    <as_of>1981-01-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>97-2nd-session-0</id>
    <congress>97</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1982-01-25</session_start>
    <session_end>1983-12-21</session_end>
    <as_of>1982-01-25</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>97-2nd-session-1</id>
    <congress>97</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1982-01-25</session_start>
    <session_end>1983-12-21</session_end>
    <as_of>1982-03-11</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>97-2nd-session-2</id>
    <congress>97</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1982-01-25</session_start>
    <session_end>1983-12-21</session_end>
    <as_of>1982-04-20</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>98-1st-session-0</id>
    <congress>98</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1983-01-03</session_start>
    <session_end>1983-11-18</session_end>
    <as_of>1983-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>98-1st-session-1</id>
    <congress>98</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1983-01-03</session_start>
    <session_end>1983-11-18</session_end>
    <as_of>1983-09-12</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>98-2nd-session-0</id>
    <congress>98</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1984-01-23</session_start>
    <session_end>1984-10-12</session_end>
    <as_of>1984-01-23</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>99-1st-session-0</id>
    <congress>99</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1985-01-03</session_start>
    <session_end>1985-12-20</session_end>
    <as_of>1985-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>99-2nd-session-0</id>
    <congress>99</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1986-01-21</session_start>
    <session_end>1986-10-18</session_end>
    <as_of>1986-01-21</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>100-1st-session-0</id>
    <congress>100</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1987-01-06</session_start>
    <session_end>1987-12-22</session_end>
    <as_of>1987-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>55</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>100-1st-session-1</id>
    <congress>100</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1987-01-06</session_start>
    <session_end>1987-12-22</session_end>
    <as_of>1987-03-13</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>100-2nd-session-0</id>
    <congress>100</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1988-01-25</session_start>
    <session_end>1988-10-22</session_end>
    <as_of>1988-01-25</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>101-1st-session-0</id>
    <congress>101</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1989-01-03</session_start>
    <session_end>1989-11-22</session_end>
    <as_of>1989-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>55</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>101-2nd-session-0</id>
    <congress>101</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1990-01-23</session_start>
    <session_end>1990-10-28</session_end>
    <as_of>1990-01-23</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>55</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>102-1st-session-0</id>
    <congress>102</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1991-01-03</session_start>
    <session_end>1992-01-03</session_end>
    <as_of>1991-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>102-1st-session-1</id>
    <congress>102</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1991-01-03</session_start>
    <session_end>1992-01-03</session_end>
    <as_of>1991-05-09</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>102-2nd-session-0</id>
    <congress>102</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1992-01-03</session_start>
    <session_end>1992-10-09</session_end>
    <as_of>1992-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>103-1st-session-0</id>
    <congress>103</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1993-01-05</session_start>
    <session_end>1993-11-26</session_end>
    <as_of>1993-01-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>43</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>103-1st-session-1</id>
    <congress>103</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1993-01-05</session_start>
    <session_end>1993-11-26</session_end>
    <as_of>1993-06-14</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>103-2nd-session-0</id>
    <congress>103</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1994-01-25</session_start>
    <session_end>1994-12-01</session_end>
    <as_of>1994-01-25</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>44</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>103-2nd-session-1</id>
    <congress>103</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1994-01-25</session_start>
    <session_end>1994-12-01</session_end>
    <as_of>1994-11-09</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>55</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>103-2nd-session-2</id>
    <congress>103</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1994-01-25</session_start>
    <session_end>1994-12-01</session_end>
    <as_of>1994-11-17</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>54</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>104-1st-session-0</id>
    <congress>104</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1995-01-04</session_start>
    <session_end>1996-01-03</session_end>
    <as_of>1995-01-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>104-1st-session-1</id>
    <congress>104</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1995-01-04</session_start>
    <session_end>1996-01-03</session_end>
    <as_of>1995-03-03</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>104-1st-session-2</id>
    <congress>104</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1995-01-04</session_start>
    <session_end>1996-01-03</session_end>
    <as_of>1995-10-01</as_of>
    <change_in_session>2</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>104-2nd-session-0</id>
    <congress>104</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1996-01-03</session_start>
    <session_end>1996-10-04</session_end>
    <as_of>1996-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>104-2nd-session-1</id>
    <congress>104</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1996-01-03</session_start>
    <session_end>1996-10-04</session_end>
    <as_of>1996-02-06</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>105-1st-session-0</id>
    <congress>105</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1997-01-07</session_start>
    <session_end>1997-11-13</session_end>
    <as_of>1997-01-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>105-2nd-session-0</id>
    <congress>105</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>1998-01-27</session_start>
    <session_end>1998-12-19</session_end>
    <as_of>1998-01-27</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>106-1st-session-0</id>
    <congress>106</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>1999-01-06</session_start>
    <session_end>1999-11-22</session_end>
    <as_of>1999-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>106-2nd-session-0</id>
    <congress>106</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2000-01-24</session_start>
    <session_end>2000-12-15</session_end>
    <as_of>2000-01-24</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>106-2nd-session-1</id>
    <congress>106</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2000-01-24</session_start>
    <session_end>2000-12-15</session_end>
    <as_of>2000-07-27</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>107-1st-session-0</id>
    <congress>107</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2001-01-03</session_start>
    <session_end>2001-01-20</session_end>
    <as_of>2001-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>50</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>107-1st-session-2-0</id>
    <congress>107</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2001-01-20</session_start>
    <session_end>2001-06-06</session_end>
    <as_of>2001-01-20</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>50</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>50</party2_seats>
    <other_seats>0</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>107-1st-session-3-0</id>
    <congress>107</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2001-06-06</session_start>
    <session_end>2001-12-20</session_end>
    <as_of>2001-06-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>1</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>107-2nd-session-0</id>
    <congress>107</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2002-01-23</session_start>
    <session_end>2002-11-22</session_end>
    <as_of>2002-01-23</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>50</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>1</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>107-2nd-session-1</id>
    <congress>107</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2002-01-23</session_start>
    <session_end>2002-11-22</session_end>
    <as_of>2002-11-12</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>2</other_seats>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>108-1st-session-0</id>
    <congress>108</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2003-01-07</session_start>
    <session_end>2003-12-08</session_end>
    <as_of>2003-01-07</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>48</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>108-2nd-session-0</id>
    <congress>108</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2004-01-20</session_start>
    <session_end>2004-12-07</session_end>
    <as_of>2004-01-20</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>48</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>109-1st-session-0</id>
    <congress>109</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2005-01-04</session_start>
    <session_end>2005-12-22</session_end>
    <as_of>2005-01-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>44</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>109-2nd-session-0</id>
    <congress>109</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2006-01-03</session_start>
    <session_end>2006-12-09</session_end>
    <as_of>2006-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>55</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>44</party2_seats>
    <other_seats>1</other_seats>
    <other_parties>1 Independent</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>110-1st-session-0</id>
    <congress>110</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2007-01-04</session_start>
    <session_end>2007-12-31</session_end>
    <as_of>2007-01-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>110-2nd-session-0</id>
    <congress>110</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2008-01-03</session_start>
    <session_end>2009-01-03</session_end>
    <as_of>2008-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>49</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>111-1st-session-0</id>
    <congress>111</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2009-01-06</session_start>
    <session_end>2009-12-24</session_end>
    <as_of>2009-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>41</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>111-1st-session-1</id>
    <congress>111</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2009-01-06</session_start>
    <session_end>2009-12-24</session_end>
    <as_of>2009-04-30</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>40</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>111-1st-session-2</id>
    <congress>111</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2009-01-06</session_start>
    <session_end>2009-12-24</session_end>
    <as_of>2009-07-07</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>58</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>40</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>111-2nd-session-0</id>
    <congress>111</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2010-01-05</session_start>
    <session_end>2010-12-22</session_end>
    <as_of>2010-01-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>58</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>40</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>111-2nd-session-1</id>
    <congress>111</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2010-01-05</session_start>
    <session_end>2010-12-22</session_end>
    <as_of>2010-02-04</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>57</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>41</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>111-2nd-session-2</id>
    <congress>111</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2010-01-05</session_start>
    <session_end>2010-12-22</session_end>
    <as_of>2010-11-29</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>56</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>42</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>112-1st-session-0</id>
    <congress>112</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2011-01-05</session_start>
    <session_end>2012-01-03</session_end>
    <as_of>2011-01-05</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>51</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>112-2nd-session-0</id>
    <congress>112</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2012-01-03</session_start>
    <session_end>2013-01-03</session_end>
    <as_of>2012-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>51</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>47</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>1 Independent, 1 Independent Democrat</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>113-1st-session-0</id>
    <congress>113</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2013-01-03</session_start>
    <session_end>2014-01-03</session_end>
    <as_of>2013-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>113-1st-session-1</id>
    <congress>113</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2013-01-03</session_start>
    <session_end>2014-01-03</session_end>
    <as_of>2013-06-10</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>52</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>46</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>113-1st-session-2</id>
    <congress>113</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2013-01-03</session_start>
    <session_end>2014-01-03</session_end>
    <as_of>2013-10-31</as_of>
    <change_in_session>2</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>113-2nd-session-0</id>
    <congress>113</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2014-01-03</session_start>
    <session_end>2014-12-16</session_end>
    <as_of>2014-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>53</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>45</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>114-1st-session-0</id>
    <congress>114</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2015-01-06</session_start>
    <session_end>2015-12-18</session_end>
    <as_of>2015-01-06</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>44</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>114-2nd-session-0</id>
    <congress>114</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2016-01-04</session_start>
    <session_end>2017-01-03</session_end>
    <as_of>2016-01-04</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>54</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>44</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>115-1st-session-0</id>
    <congress>115</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2017-01-03</session_start>
    <session_end>2018-01-03</session_end>
    <as_of>2017-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>52</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>115-2nd-session-0</id>
    <congress>115</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2018-01-03</session_start>
    <session_end>2019-01-03</session_end>
    <as_of>2018-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>47</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>116-1st-session-0</id>
    <congress>116</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2019-01-03</session_start>
    <session_end>2020-01-03</session_end>
    <as_of>2019-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>116-2nd-session-0</id>
    <congress>116</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2020-01-03</session_start>
    <session_end>2021-01-03</session_end>
    <as_of>2020-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>116-2nd-session-1</id>
    <congress>116</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2020-01-03</session_start>
    <session_end>2021-01-03</session_end>
    <as_of>2020-12-02</as_of>
    <change_in_session>1</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>52</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>117-1st-session-0</id>
    <congress>117</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2021-01-03</session_start>
    <session_end>2021-01-20</session_end>
    <as_of>2021-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>51</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>46</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>1</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>117-1st-session-2-0</id>
    <congress>117</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2021-01-20</session_start>
    <session_end>2022-01-03</session_end>
    <as_of>2021-01-20</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>48</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>50</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>117-2nd-session-0</id>
    <congress>117</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2022-01-03</session_start>
    <session_end>2023-01-03</session_end>
    <as_of>2022-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>48</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>50</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>118-1st-session-0</id>
    <congress>118</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2023-01-03</session_start>
    <session_end>2024-01-03</session_end>
    <as_of>2023-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>48</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>118-2nd-session-0</id>
    <congress>118</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2024-01-03</session_start>
    <session_end>2025-01-03</session_end>
    <as_of>2024-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>48</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>3</other_seats>
    <other_parties>3 Independents</other_parties>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>118-2nd-session-1</id>
    <congress>118</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2024-01-03</session_start>
    <session_end>2025-01-03</session_end>
    <as_of>2024-05-31</as_of>
    <change_in_session>1</change_in_session>
    <party1>Democrats</party1>
    <party1_seats>47</party1_seats>
    <party2>Republicans</party2>
    <party2_seats>49</party2_seats>
    <other_seats>4</other_seats>
    <other_parties>4 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>119-1st-session-0</id>
    <congress>119</congress>
    <session>1st session</session>
    <session_number>1</session_number>
    <session_start>2025-01-03</session_start>
    <session_end>2026-01-03</session_end>
    <as_of>2025-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
  <row>
    <id>119-2nd-session-0</id>
    <congress>119</congress>
    <session>2nd session</session>
    <session_number>2</session_number>
    <session_start>2026-01-03</session_start>
    <as_of>2026-01-03</as_of>
    <change_in_session>0</change_in_session>
    <party1>Republicans</party1>
    <party1_seats>53</party1_seats>
    <party2>Democrats</party2>
    <party2_seats>45</party2_seats>
    <other_seats>2</other_seats>
    <other_parties>2 Independents</other_parties>
    <vacant_seats>0</vacant_seats>
    <total_seats>100</total_seats>
  </row>
</dataset>
