With CIA Director David Petraeus resigning over an affair, look back at some of the biggest political sex scandals.
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U.S. Rep. Chris Lee's Office
On Feb. 9, 2011, New York Rep. Christopher Lee resigned after the gossip website Gawker reported that the married congressman had sent a shirtless photo of himself to a woman whose Craigslist ad he answered. He said he was quitting because he regretted actions that hurt his family and others.