| Office(s) | Candidate |
| U.S. Senator from Arizona (1987-present), U.S. Congressman (1981-1987) | |
| Governor of Massachusetts (2003-'07) | |
| Governor of Arkansas (1996-2007) | |
| U.S. Congressman from Texas (1976-'77, '79-'85, '97-present), 1988 Libertarian Presidential Nominee | |
| New York City Mayor (1994-2001) | |
| U.S. Senator from Tennessee (1994-2003) | |
| U.S. Congressman from California (1981-2009) | |
| Governor of Virginia (1998-2002) | |
| Governor of Wisconsin (2001-2005) | |
| U.S. Senator from Kansas (1996-present) | |
| U.S. Congressman from Colorado (1999-present) | |
| Businessman | |