| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $142K | 22 | 2002, 2006, 1998, 2004, 2000 |
| NARAL PRO-CHOICE AMERICA | $73K | 22 | 2002, 2006, 2000 |
| DCCC | $60K | 68 | 2002, 2006, 1998, 2004, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $58K | 26 | 2002, 2014, 2006, 1998, 2004, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $56K | 23 | 2002, 2014, 2006, 1998, 2004, 2012, 2000 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $50K | 12 | 2002, 2006, 1998, 2004, 2000 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $48K | 20 | 2002, 2006, 1998, 2004, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $48K | 13 | 2002, 2006, 1998, 2004, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $45K | 13 | 2002, 2014, 2006, 1998, 2016, 2004, 2000 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $43K | 13 | 2002, 2006, 1998, 2004, 2000 |