| INTERNATIONAL ASSOCIATION OF SHEET METAL, AIR, RAIL AND TRANSPORTATION WORKERS POLITICAL ACTION LEAGUE | $52K | 6 | 2002, 2014, 2006, 2004 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $40K | 15 | 2002, 2006, 2004, 2008 |
| AT&T INC. EMPLOYEE FEDERAL POLITICAL ACTION COMMITTEE (AT&T EMPLOYEE FEDERAL PAC) | $40K | 8 | 2002, 2006, 2004, 2008 |
| CME GROUP INC. PAC | $35K | 15 | 2002, 2006, 2004, 2008 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $34K | 12 | 2002, 2006, 2004, 2008 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $31K | 10 | 2002, 2006, 2004, 2008 |
| EXELON CORPORATION POLITICAL ACTION COMMITTEE | $30K | 6 | 2002, 2006, 2004, 2008 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $30K | 22 | 2002, 2006, 2004, 2008 |
| JPMORGAN CHASE & CO. PAC | $30K | 7 | 2002, 2006, 2004 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $30K | 6 | 2002, 2006, 2004, 2008 |