Mitt Romney's 2003 endorsement of liberal Democrat Salt Lake City Mayor Rocky Anderson
Anderson endorsed Romney in 2002, He wanted to impeach Bush in 2005
Rick Santorum endorses Arlen Specter over the more conservative Pat Toomey in 2004
Arlen Specter returns the favor in 2006. Specter was key in passing ObamaCare.
Newt Gingrich endorses Dede Scozzafava in NY-09. She drops out and endorses the Democratic candidate.
Ron Paul endorses Cynthia McKinney, Ralph Nader, Bob Barr, and Chuck Baldwin for President in 2008.
Andrew Kaczynski is a political reporter for BuzzFeed News and is based in New York.
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