| DSCC | $754K | 5 | 2002, 1996 |
| NATIONAL EDUCATION ASSOCIATION | $175K | 4 | 2002 |
| AFL-CIO | $125K | 9 | 2002, 1996 |
| REPRODUCTIVE FREEDOM FOR ALL PAC | $64K | 4 | 2002 |
| NRSC | $32K | 4 | 1996 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $21K | 5 | 1996, 2004, 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $20K | 5 | 2002, 1996, 2000 |
| INT'L ASSOCIATION OF BRIDGE, STRUCTURAL, ORNAMENTAL AND REINFORCING IRON WORKERS (IPAL) | $20K | 14 | 2002, 1996, 2000 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $20K | 4 | 2002, 1996 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $20K | 6 | 2002, 1996 |