| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $82K | 20 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 1982, 2000 |
| SMART TD PAC | $64K | 33 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $59K | 20 | 2002, 1996, 1994, 1992, 1988, 1998, 1986, 2000 |
| AIR LINE PILOTS ASSOCIATION PAC | $58K | 24 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| LABORERS' INTERNATIONAL UNION OF NORTH AMERICA (LIUNA) PAC | $53K | 37 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| AMERICAN AIRLINES INC. POLITICAL ACTION COMMITTEE (AAPAC) | $51K | 45 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $44K | 48 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $41K | 26 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 1986, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $39K | 33 | 1990, 2002, 1996, 1994, 1992, 1988, 1998, 1986, 1982, 2000 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $37K | 47 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |