| DCCC | $122K | 50 | 1990, 2002, 1996, 1994, 1992, 1998, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $65K | 21 | 1990, 2002, 1996, 1994, 1992, 1998, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $61K | 18 | 1990, 2002, 1996, 1994, 1992, 1998, 2000 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $60K | 13 | 1990, 2002, 1996, 1994, 1992, 1998, 2000 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $48K | 28 | 1990, 2002, 1996, 1994, 1992, 1998, 2000 |
| INTERNATIONAL LONGSHORE AND WAREHOUSE UNION -- POLITICAL ACTION FUND | $42K | 58 | 1990, 2002, 1996, 1994, 1992, 1998, 2000 |
| LABORERS' INTERNATIONAL UNION OF NORTH AMERICA (LIUNA) PAC | $40K | 13 | 2002, 1996, 1992, 1998, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $31K | 10 | 1990, 2002, 1992, 1998, 2000 |
| NATIONAL ASSOCIATION OF LETTER CARRIERS OF U.S.A. POLITICAL FUND (LETTER CARRIER POLITICAL FUND) | $30K | 16 | 1990, 2002, 1996, 1994, 1992, 1998, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $29K | 26 | 2002, 1996, 1994, 1992, 1998, 2000 |