| DCCC | $122K | 40 | 1990, 1996, 2006, 1992, 1984, 1998, 2008, 1986, 1982 |
| NATIONAL RIFLE ASSOCIATION OF AMERICA POLITICAL VICTORY FUND | $105K | 58 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2008, 1986, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $73K | 37 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $70K | 25 | 2010, 1990, 2002, 1996, 2006, 1992, 1984, 1988, 1998, 2008, 1986, 1982, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $66K | 43 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |
| MANTECH INTERNATIONAL CORPORATION POLITICAL ACTION COMMITTEE ( A.K.A 'MANTECH PAC') | $60K | 36 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2008, 2000 |
| UNITED MINE WORKERS OF AMERICA - COAL MINERS POLITICAL ACTION COMMITTEE | $54K | 49 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $54K | 39 | 2010, 1990, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2008, 1986, 1982, 2000 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $54K | 39 | 2010, 1990, 2002, 1996, 1994, 2006, 1992, 1984, 1988, 1998, 2008, 1986, 1982, 2000 |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | $53K | 31 | 2010, 2002, 1994, 2006, 1988, 1998, 2004, 2008, 1986, 1982, 2000 |