| NRSC | $2.9M | 42 | 1980, 1982, 1984, 1986, 1990, 1992, 2004 |
| DSCC | $1.2M | 22 | 2010 |
| PENNSYLVANIA DEMOCRATIC PARTY | $202K | 74 | 2010 |
| NATIONAL ASSOCIATION OF REALTORS POLITICAL ACTION COMMITTEE | $46K | 29 | 1980, 1982, 1984, 1986, 1988, 1990, 1992, 1998, 2002, 2004, 2010 |
| UA UNION PLUMBERS & PIPEFITTERS VOTE! PAC (UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA) | $45K | 17 | 1986, 1990, 1992, 1996, 1998, 2002, 2008 |
| AIR LINE PILOTS ASSOCIATION PAC | $43K | 19 | 1982, 1986, 1990, 1992, 1998, 2002, 2004, 2008 |
| WASHINGTON POLITICAL ACTION COMMITTEE | $42K | 30 | 1984, 1986, 1990, 1992, 1996, 1998, 2002, 2004, 2006, 2008, 2010 |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | $42K | 17 | 1980, 1984, 1986, 1992, 1998, 2002, 2004, 2008 |
| NATIONAL ASSOCIATION OF INSURANCE AND FINANCIAL ADVISORS POLITICAL ACTION COMM | $42K | 29 | 1980, 1984, 1986, 1990, 1992, 1996, 1998, 2002, 2004 |
| RITE AID CORPORATION PAC | $42K | 16 | 1986, 1988, 1990, 1992, 1996, 1998, 2002, 2004, 2010 |