| DSCC | $6.8M | 22 | 2006 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $957K | 11 | 2002, 2006, 2004, 2012, 2008 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $751K | 46 | 2002, 2006, 2008 |
| REPUBLICAN NATIONAL COMMITTEE | $723K | 8 | 2002, 2006 |
| NRSC | $668K | 7 | 2002, 2006 |
| NATIONAL RIGHT TO LIFE POLITICAL ACTION COMMITTEE | $444K | 76 | 2002, 2006 |
| NATIONAL ASSOCIATION OF REALTORS | $230K | 3 | 2006 |
| COOPERATIVE OF AMERICAN PHYSICIANS FEDERAL POLITICAL ACTION COMMITTEE | $124K | 5 | 2006, 2004 |
| EMILYS LIST | $99K | 2 | 2006 |
| SUSAN B. ANTHONY LIST INC. CANDIDATE FUND (DBA SUSAN B. ANTHONY PRO-LIFE AMERICA CANDIDATE FUND) | $59K | 21 | 2002, 2006 |