| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $82K | 57 | 2010, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2018, 2008, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $80K | 36 | 2010, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| LABORERS' INTERNATIONAL UNION OF NORTH AMERICA (LIUNA) PAC | $78K | 38 | 2010, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $77K | 26 | 2010, 2002, 1996, 1994, 2006, 1992, 1998, 2016, 2004, 2012, 2018, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $76K | 36 | 2010, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $74K | 25 | 2002, 1996, 1994, 2006, 1992, 1998, 2016, 2004, 2018, 2000 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $73K | 30 | 2010, 2002, 1996, 1994, 2014, 2006, 1992, 1998, 2016, 2004, 2018, 2008, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $70K | 25 | 2010, 2002, 1996, 1994, 2014, 1992, 1998, 2016, 2004, 2012, 2000 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $64K | 47 | 2010, 2002, 1996, 1994, 2014, 1992, 1998, 2016, 2004, 2012, 2008, 2000 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $62K | 17 | 2002, 1996, 1994, 2014, 1998, 2016, 2004, 2012, 2000 |