| DCCC | $57K | 33 | 1996, 1994, 1992, 1998 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $37K | 15 | 1996, 1994, 1992, 1998 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $36K | 19 | 1996, 1994, 1992, 1998 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $35K | 14 | 1996, 1994, 1992, 1998 |
| PENNSYLVANIA STATE EDUCATION ASSOCIATION | $34K | 5 | 2000 |
| UAW - V - CAP (UAW VOLUNTARY COMMUNITY ACTION PROGRAM) 'INT'L UNION UNITED AUTOMOBILE AEROSPACE & AGRICULTURAL IMPLEMENT WORKERS OF AMERICA UAW | $33K | 9 | 1996, 1994, 1992, 1998 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $32K | 27 | 1996, 1994, 1992, 1998 |
| UNITED STEELWORKERS POLITICAL ACTION FUND | $32K | 10 | 1996, 1994, 1992, 1998 |
| ENGINEERS POLITICAL EDUCATION COMMITTEE (EPEC)/INTERNATIONAL UNION OF OPERATING ENGINEERS | $28K | 14 | 1996, 1994, 1992, 1998 |
| COMMUNICATION WORKERS OF AMERICA LOCAL 13000 | $26K | 6 | 1996, 1994, 1992, 1998 |