U.S. Senator John Ensign resigned from his post as chair of the Senate Republican Policy Committee Wednesday after publicly confessing to an affair with a staffer. Senate Republican Leader Mitch McConnell announced Ensign's resignation, which is another blow to the embattled Republican Party that bills itself as a champion of family values. Ensign, 51, held the fourth ranking post in the Party and was seen as a 2012 presidential contender. He confessed to an affair in 2007 with a staffer who was married to another of his employees.