| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $77K | 39 | 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| NATIONAL AUTOMOBILE DEALERS ASSOCIATION POLITICAL ACTION COMMITTEE | $71K | 28 | 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| UNITED SERVICES AUTOMOBILE ASSOCIATION EMPLOYEE PAC - USAA EMPLOYEE PAC | $64K | 21 | 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| COMMUNICATIONS WORKERS OF AMERICA - COPE POLITICAL CONTRIBUTIONS COMMITTEE | $64K | 19 | 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| AT&T INC. EMPLOYEE FEDERAL POLITICAL ACTION COMMITTEE (AT&T EMPLOYEE FEDERAL PAC) | $63K | 37 | 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $52K | 25 | 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| IHEARTMEDIA, INC. PAC | $48K | 20 | 2002, 2004, 2006, 2008, 2010, 2012 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $45K | 16 | 2000, 2002, 2004, 2006, 2008, 2010 |
| WALMART INC. PAC FOR RESPONSIBLE GOVERNMENT | $44K | 26 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $41K | 29 | 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012 |