| DCCC | $256K | 79 | 2002, 1996, 1994, 1998, 2004, 2000 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $236K | 21 | 2002, 1998, 2000 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $166K | 22 | 2002, 1996, 1994, 1998, 2000 |
| AFL-CIO | $154K | 30 | 2002, 1996, 1994, 1998, 2000 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $60K | 19 | 2002, 1996, 1994, 1998, 2000 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $55K | 18 | 2002, 1996, 1994, 1998, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $55K | 12 | 2002, 1996, 1994, 1998, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $53K | 16 | 2002, 1996, 1994, 1998, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $51K | 19 | 2002, 1996, 1994, 1998, 2000 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $50K | 20 | 2002, 1996, 1994, 1998, 2000 |