| NRCC | $635K | 23 | 2006, 2008 |
| AMERICANS FOR JOB SECURITY | $444K | 3 | 2010 |
| DCCC | $209K | 20 | 2010, 2006, 2012, 2008 |
| SIERRA CLUB POLITICAL COMMITTEE | $74K | 35 | 2006, 2008 |
| AFL-CIO | $70K | 34 | 2010, 2006, 2008 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $61K | 15 | 2010, 2006, 2008 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $55K | 21 | 2010, 2012, 2008 |
| INT'L ASSOCIATION OF BRIDGE, STRUCTURAL, ORNAMENTAL AND REINFORCING IRON WORKERS (IPAL) | $35K | 16 | 2010, 2006, 2012, 2008 |
| UA UNION PLUMBERS & PIPEFITTERS VOTE! PAC (UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA) | $35K | 7 | 2010, 2006, 2012, 2008 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $32K | 19 | 2010, 2006, 2012, 2008 |