| DCCC | $226K | 76 | 1980, 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006 |
| UNITED STEELWORKERS POLITICAL ACTION FUND | $75K | 19 | 1980, 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $75K | 27 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $73K | 26 | 1992, 1994, 1996, 1998, 2000, 2002, 2004 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $72K | 18 | 1980, 1992, 1994, 1996, 1998, 2000, 2002, 2004 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $72K | 22 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $68K | 16 | 1980, 1992, 1994, 1996, 1998, 2000, 2002, 2004 |
| UA UNION PLUMBERS & PIPEFITTERS VOTE! PAC (UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA) | $65K | 16 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $63K | 28 | 1980, 1992, 1994, 1996, 1998, 2000, 2002, 2004 |
| COMMUNICATIONS WORKERS OF AMERICA - COPE POLITICAL CONTRIBUTIONS COMMITTEE | $62K | 24 | 1980, 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006 |