| CAMPAIGN FOR PRIMARY ACCOUNTABILITY INC | $121K | 16 | 2012 |
| REPUBLICAN NATIONAL COMMITTEE | $61K | 8 | 1996, 1994 |
| FREEDOMWORKS FOR AMERICA | $34K | 6 | 2012 |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | $26K | 25 | 1996, 1994, 1998, 2000 |
| INDIANA FARM BUREAU INC ELECT PAC INC | $25K | 6 | 1996, 1994, 1998 |
| AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE | $25K | 9 | 1996, 1994, 1998 |
| NATIONAL BEER WHOLESALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $22K | 9 | 1996, 1994, 1998 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $20K | 13 | 1996, 1994, 1998 |
| KOCH, INC. POLITICAL ACTION COMMITTEE (KOCHPAC) | $18K | 13 | 1996, 1994, 1998 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $18K | 5 | 1996, 1998 |