| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $74K | 44 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2008, 2000 |
| NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL ADVISORS POLITICAL ACTION COMM | $68K | 40 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2008, 2000 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $65K | 43 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2000 |
| NATIONAL ASSOCIATION OF LETTER CARRIERS OF U.S.A. POLITICAL FUND (LETTER CARRIER POLITICAL FUND) | $64K | 33 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2000 |
| LABORERS' INTERNATIONAL UNION OF NORTH AMERICA (LIUNA) PAC | $63K | 38 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2008, 2000 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $56K | 36 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $46K | 32 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2008, 2000 |
| AIR LINE PILOTS ASSOCIATION PAC | $43K | 30 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2008, 2000 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $43K | 34 | 1990, 2002, 1996, 1994, 2006, 1992, 1998, 2004, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $41K | 44 | 1990, 2002, 1996, 1994, 2006, 1992, 1988, 1998, 2004, 2008, 2000 |