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GOP Senator's Messy Affair

Nevada Sen. John Ensign said his affair with a campaign staffer was "the worst thing I have ever done." He said his family was very close with the woman and her husband. CBS

06.16.09 8:50 PM ET

Nevada Sen. John Ensign said his affair with a campaign staffer was "the worst thing I have ever done." He said his family was very close with the woman and her husband. CBS