| DEMOCRACY FOR AMERICA | $125K | 2 | 2004 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $98K | 50 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $86K | 43 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $85K | 34 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $67K | 41 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 1986, 2000 |
| RRI ENERGY, INC. POLITICAL ACTION COMMITTEE | $67K | 37 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $60K | 40 | 1990, 2002, 1996, 1994, 2006, 1984, 1988, 1998, 2004, 1986, 2000 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $59K | 38 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 1986, 2000 |
| AT&T INC. EMPLOYEE FEDERAL POLITICAL ACTION COMMITTEE (AT&T EMPLOYEE FEDERAL PAC) | $59K | 46 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 2000 |
| AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS POLITICAL ACTION COMMITTEE | $54K | 28 | 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 1986, 2000 |