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# Being an unindicted co-conspirator in the Abscam scandal. (Jack Murtha, D-PA, re-elected until he died in office.)
# Being caught on tape smoking crack cocaine. (Marion Barry, Democratic mayor of Washington, DC, went on to serve on the Washington D.C. City Council and another term as mayor after his release from prison.)
# Association with a domestic terrorist. (Barack Obama)
# Swimming away and letting Mary Jo Kopechne drown, and offering to help the Soviet Union defeat America’s most formidable enemy: President Ronald Reagan. (Ted Kennedy, D-MA, re-elected until he died in office.)