| CAMPAIGN FOR PRIMARY ACCOUNTABILITY INC | $132K | 8 | 2012 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $78K | 16 | 2010, 2002, 1996, 2006, 1998, 2004, 2008, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $68K | 14 | 2002, 1996, 1994, 2006, 1998, 2004, 2008, 2000 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $63K | 21 | 2010, 2002, 1996, 2006, 1998, 2004, 2008, 2000 |
| UNITED STEELWORKERS POLITICAL ACTION FUND | $63K | 14 | 2010, 2002, 1996, 2006, 1998, 2004, 2008, 2000 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $61K | 27 | 2010, 2002, 1996, 1998, 2004, 2008, 2000 |
| INTERNATIONAL LONGSHOREMEN'S ASSOCIATION COMMITTEE ON POLITICAL EDUCATION | $59K | 22 | 2010, 2002, 1996, 2006, 1998, 2004, 2008, 2000 |
| DCCC | $59K | 40 | 2002, 1996, 1998, 2004, 2000 |
| OHIOANS FOR OPPORTUNITY | $58K | 7 | 2012 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $58K | 16 | 2010, 2002, 1996, 2006, 1998, 2004, 2008, 2000 |