| NRCC | $155K | 171 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $123K | 58 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $63K | 27 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| HUMAN RIGHTS CAMPAIGN PAC | $49K | 30 | 2002, 1996, 2006, 1998, 2004, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $48K | 38 | 1990, 2002, 1996, 1994, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $43K | 36 | 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| PINNACLE WEST CAPITAL CORPORATION PAC | $37K | 40 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 1986, 1982, 2000 |
| EMPLOYEES FUND FOR GOOD GOVERNMENT | $36K | 32 | 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 1986, 2000 |
| REPUBLICAN NATIONAL COMMITTEE | $34K | 15 | 1996, 1994, 1992, 1984, 1982, 2000 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $34K | 25 | 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2000 |