| NRCC | $77K | 19 | 1994, 1996, 1998, 2000, 2002, 2006, 2008 |
| REPUBLICAN NATIONAL COMMITTEE | $68K | 7 | 1994, 1996, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $51K | 15 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| NATIONAL BEER WHOLESALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $50K | 21 | 1998, 2000, 2002, 2004, 2006, 2008 |
| NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL ADVISORS POLITICAL ACTION COMM | $46K | 30 | 1996, 1998, 2000, 2002, 2004, 2006 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $44K | 35 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $40K | 23 | 1998, 2000, 2002, 2004, 2006, 2008 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $37K | 15 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| NATIONAL RURAL ELECTRIC COOPERATIVE ASSOCIATION AMERICA'S ELECTRIC COOPERATIVES PAC | $36K | 40 | 1996, 1998, 2000, 2002, 2004, 2006, 2008 |
| NATIONAL FEDERATION OF INDEPENDENT BUSINESS FEDERAL POLITICAL ACTION COMMITTEE | $35K | 26 | 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008 |