| NRCC | $74K | 344 | 1984, 1986, 1988, 1990, 1992, 1994, 1996, 1998, 2000, 2002, 2004 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $47K | 47 | 1984, 1986, 1988, 1990, 1992, 1994, 1996, 1998, 2000, 2002 |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | $45K | 27 | 1986, 1988, 1990, 1992, 1994, 1996, 1998, 2000, 2002 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $43K | 28 | 1986, 1988, 1990, 1992, 1996, 1998, 2000, 2002, 2004 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $43K | 20 | 1984, 1986, 1988, 1990, 1992, 1994, 1996, 1998, 2002 |
| WESTERN PEANUT GROWERS ASSOCIATION, INC. POLITICAL ACTION COMMITTEE | $41K | 22 | 1992, 1994, 1996, 1998, 2000, 2002 |
| TEXAS FARM BUREAU AGFUND | $37K | 13 | 1988, 1992, 1996, 1998, 2000, 2002 |
| DAIRY FARMERS OF AMERICA, INC. POLITICAL ACTION COMMITTEE; AKA DFA-PAC | $32K | 29 | 1984, 1986, 1988, 1990, 1992, 1996, 1998, 2000, 2002 |
| BEEF-PAC (BEEF POLITICAL ACTION COMMITTEE OF TEXAS CATTLE FEEDERS ASSOCIATION) | $31K | 33 | 1984, 1986, 1988, 1990, 1992, 1994, 1996, 1998, 2000, 2002 |
| NATIONAL RURAL ELECTRIC COOPERATIVE ASSOCIATION AMERICA'S ELECTRIC COOPERATIVES PAC | $29K | 26 | 1986, 1988, 1990, 1994, 1996, 1998, 2000, 2002 |