| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $269K | 30 | 2002, 1996, 1994, 1992, 1998, 2004, 2000 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $259K | 23 | 2002, 1996, 1994, 1992, 1998, 2004, 2000 |
| DCCC | $226K | 76 | 2002, 1996, 1994, 2006, 1992, 1998, 1980, 2004, 2000 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $81K | 27 | 2002, 1996, 1994, 1998, 2004, 2000 |
| UNITED STEELWORKERS POLITICAL ACTION FUND | $75K | 19 | 2002, 1996, 1994, 2006, 1992, 1998, 1980, 2004, 2000 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $75K | 27 | 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $73K | 26 | 2002, 1996, 1994, 1992, 1998, 2004, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $72K | 18 | 2002, 1996, 1994, 1992, 1998, 1980, 2004, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $72K | 22 | 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $68K | 16 | 2002, 1996, 1994, 1992, 1998, 1980, 2004, 2000 |