Sen. John Ensign, R-Nev. speaks at a news conference at the Lloyd D. George Federal building, Tuesday, June 16, 2009 in Las Vegas. Ensign apologized for having an affair with a member of his campaign staff more than a year ago and says he remains "deeply committed" to his service in the U.S. Senate. In Las Vegas on Tuesday, Ensign called the affair "absolutely the worst thing that I have ever done in my life," and said he and his wife sought counseling and reconciled. AP Photo logo AP Photo 7 months ago

Sen. John Ensign, R-Nev. speaks at a news conference at the Lloyd D. George Federal building, Tuesday, June 16, 2009 in Las Vegas. Ensign apologized for having an affair with a member of his campaign staff more than a year ago and says he remains "deeply committed" to his service in the U.S. Senate. In Las Vegas on Tuesday, Ensign called the affair "absolutely the worst thing that I have ever done in my life," and said he and his wife sought counseling and reconciled.