| NRCC | $129K | 62 | 1996, 1998, 2000 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $42K | 18 | 1996, 1998, 2000 |
| SOUTH DAKOTA REPUBLICAN PARTY | $30K | 7 | 1996, 1998, 2000 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $19K | 9 | 1996, 1998, 2000 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $19K | 8 | 1996, 1998, 2000 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $18K | 8 | 1996, 1998, 2000 |
| NATIONAL BEER WHOLESALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $17K | 9 | 1996, 1998, 2000 |
| NATIONAL FEDERATION OF INDEPENDENT BUSINESS FEDERAL POLITICAL ACTION COMMITTEE | $16K | 8 | 1996, 1998, 2000 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $16K | 6 | 1996, 1998, 2000 |
| NORTHWESTERN ENERGY EMPLOYEES PAC | $16K | 6 | 1996, 1998, 2000 |