| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $64K | 24 | 2002, 1996, 2006, 1998, 2004, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $58K | 25 | 2002, 1996, 2006, 1998, 2004, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $58K | 17 | 2002, 1996, 2006, 1998, 2004, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $57K | 18 | 2002, 1996, 2006, 1998, 2004, 2000 |
| DCCC | $51K | 59 | 2002, 1996, 2006, 1998, 2004, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $50K | 14 | 2002, 1996, 2006, 1998, 2004, 2000 |
| GENERAL DYNAMICS CORPORATION POLITICAL ACTION COMMITTEE (GENERAL DYNAMICS EMPLOYEE PAC) | $39K | 33 | 2002, 1996, 2006, 1998, 2004, 2000 |
| LABORERS' INTERNATIONAL UNION OF NORTH AMERICA (LIUNA) PAC | $35K | 20 | 2002, 1996, 2006, 1998, 2004, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $34K | 23 | 2002, 1996, 2006, 1998, 2004, 2000 |
| AIR LINE PILOTS ASSOCIATION PAC | $32K | 19 | 2002, 2006, 1998, 2004, 2000 |