| DCCC | $814K | 22 | 2006, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $362K | 4 | 2006 |
| NRCC | $232K | 32 | 2002, 2006, 1998, 2004, 2008, 2000 |
| REPUBLICAN NATIONAL COMMITTEE | $92K | 4 | 2006, 1998, 2000 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $63K | 7 | 2006, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $50K | 20 | 2002, 2006, 1998, 2004, 2000 |
| AUTOMOTIVE FREE INTERNATIONAL TRADE PAC | $50K | 10 | 2002, 2006, 1998, 2004, 2000 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $48K | 25 | 2002, 2006, 1998, 2004, 2000 |
| NATIONAL BEER WHOLESALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $45K | 11 | 2002, 2006, 1998, 2004, 2000 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $35K | 35 | 2002, 2006, 1998, 2004, 2000 |