With CIA Director David Petraeus resigning over an affair, look back at some of the biggest political sex scandals.
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In 1990, the House voted to reprimand Massachusetts Rep. Barney Frank when it was revealed that Steve Gobie, a male escort whom Frank had befriended after hiring him through a personal advertisement, claimed to have conducted an escort service from Frank's apartment when he was not at home. The House Ethics Committee found no evidence that Frank had known of or been involved in the alleged illegal activity. Gobie disputes Frank's account.