| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $90K | 45 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $69K | 21 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 2000 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $61K | 43 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $56K | 38 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |
| LABORERS' INTERNATIONAL UNION OF NORTH AMERICA (LIUNA) PAC | $55K | 29 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 2000 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $54K | 47 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $45K | 34 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $41K | 17 | 1990, 2002, 1996, 1994, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| AIR LINE PILOTS ASSOCIATION PAC | $39K | 25 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| AMERICAN POSTAL WORKERS UNION COMMITTEE ON POLITICAL ACTION | $38K | 29 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |