Las Vegas, Nevada, USA Nevada's Republican US Senator John Ensign today admitted to his colleagues that he has an affair with a with a female campaign staffer married to an employee in Ensign's Senate office. The affair is supposed to have took place between December 2007 and August 2008. Both the staffer and the employee left the office earlier. Senator Ensign is a front runner for GOP's Presidential Nominee for 2012. Senator's statement as released by his office - "I came home to Nevada to come forward and... Full Story