| NRCC | $216K | 101 | 1990, 2002, 1996, 1994, 1992, 1998, 2004 |
| REPUBLICAN NATIONAL COMMITTEE | $103K | 11 | 1990, 2002, 1996, 1994, 1992, 1998 |
| AMERICAN HOSPITAL ASSOCIATION PAC | $92K | 29 | 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $74K | 31 | 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $63K | 42 | 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $62K | 41 | 1990, 2002, 1996, 1994, 2006, 1998, 2004, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $58K | 28 | 2002, 1996, 1994, 1992, 1998, 2004, 2000 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $57K | 26 | 2002, 1996, 1994, 1992, 1998, 2004, 2000 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $53K | 19 | 1990, 2002, 1996, 1994, 1992, 1998, 2004, 2000 |
| NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL ADVISORS POLITICAL ACTION COMM | $51K | 29 | 1990, 2002, 1996, 1994, 1992, 1998, 2004, 2000 |