| D.R.I.V.E. - DEM, REP, IND VOTER ED (THE PAC OF THE INT'L BRHD OF TEAMSTERS) | $91K | 47 | 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012, 2014, 2018 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $78K | 19 | 2000, 2002, 2004, 2006, 2008, 2010, 2012, 2014 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $77K | 54 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| CALIFORNIA DEMOCRATIC PARTY | $70K | 8 | 2000 |
| AT&T INC. EMPLOYEE FEDERAL POLITICAL ACTION COMMITTEE (AT&T EMPLOYEE FEDERAL PAC) | $70K | 40 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $69K | 35 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $67K | 41 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $61K | 26 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $60K | 38 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | $60K | 14 | 2000, 2002, 2004, 2006, 2008, 2010, 2012 |