| DCCC | $333K | 11 | 2006, 2016, 2004, 2012, 2018, 2008 |
| NRCC | $163K | 3 | 2004 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $110K | 48 | 2010, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $106K | 26 | 2010, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| MIDWEST REGION LABORERS' POLITICAL LEAGUE | $101K | 25 | 2010, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $95K | 23 | 2010, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| MISSOURI DEMOCRATIC STATE COMMITTEE (FEDERAL) | $95K | 18 | 2010, 2014, 2006, 2004 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $85K | 27 | 2010, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $84K | 18 | 2010, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $84K | 25 | 2010, 2024, 2014, 2006, 2020, 2016, 2004, 2012, 2018, 2022, 2008 |