With CIA Director David Petraeus resigning over an affair, look back at some of the biggest political sex scandals.
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Reuters
In September 2006, ABC News reported that Florida Rep. Mark Foley had sent sexually explicit e-mail messages and instant messages to a former congressional page. The revelations prompted even more pages to come forward, alleging a history of inappropriate conduct by Foley dating back at least 10 years. Foley resigned from office on Sept. 29, 2006.