| DCCC | $109K | 70 | 2002, 1996, 1994, 1998, 2004, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $44K | 18 | 2002, 1996, 1994, 1998, 2004, 2000 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $40K | 13 | 2002, 1996, 1994, 1998, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $39K | 11 | 2002, 1996, 1994, 1998, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $37K | 19 | 2002, 1996, 1994, 1998, 2004, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $36K | 22 | 2002, 1996, 1994, 1998, 2004, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $34K | 15 | 2002, 1996, 1994, 1998, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $32K | 16 | 2002, 1996, 1994, 1998, 2000 |
| UNITEHERE T I P - 'TO INSURE PROGRESS' | $28K | 14 | 2002, 1996, 1994, 1998, 2004, 2000 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $26K | 17 | 2002, 1996, 1994, 1998, 2000 |