| NORTH DAKOTA DEMOCRATIC-NONPARTISAN LEAGUE PARTY | $269K | 168 | 2002, 2004, 2006, 2008, 2010 |
| DCCC | $188K | 87 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL ADVISORS POLITICAL ACTION COMM | $100K | 41 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $93K | 30 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | $92K | 41 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $92K | 36 | 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $92K | 57 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $91K | 30 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $90K | 35 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $90K | 29 | 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010 |