| DCCC | $2.3M | 26 | 2006, 2008, 2000 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $716K | 57 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 1986, 1982, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $246K | 65 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 1986, 1982, 2000 |
| NRCC | $217K | 113 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 2008, 1986, 1982, 2000 |
| REPUBLICAN NATIONAL COMMITTEE | $186K | 14 | 2002, 1994, 2006, 1992, 1980, 1982, 2000 |
| NATIONAL ASSOCIATION OF REALTORS | $178K | 8 | 2002, 1994, 2006, 1992, 2000 |
| AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS POLITICAL ACTION COMMITTEE | $94K | 54 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2008, 1986, 2000 |
| NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL ADVISORS POLITICAL ACTION COMM | $65K | 37 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 1980, 2004, 1986, 1982, 2000 |
| AUTOMOTIVE FREE INTERNATIONAL TRADE PAC | $61K | 20 | 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| DELOITTE POLITICAL ACTION COMMITTEE | $59K | 26 | 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |