| DCCC | $498K | 56 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $72K | 29 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $65K | 20 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| D.R.I.V.E. - DEM, REP, IND VOTER ED (THE PAC OF THE INT'L BRHD OF TEAMSTERS) | $63K | 17 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $60K | 19 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $60K | 17 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $52K | 24 | 1996, 1998, 2000, 2002, 2004, 2006 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $50K | 35 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| HUMAN RIGHTS CAMPAIGN PAC | $48K | 42 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| COMMUNICATIONS WORKERS OF AMERICA - COPE POLITICAL CONTRIBUTIONS COMMITTEE | $46K | 14 | 1996, 1998, 2000, 2004, 2006, 2008 |