Former South Carolina Gov. Mark Sanford was a rising star in the Republican Party when he went missing for several days in 2009. He initially claimed he was hiking the Appalachian Trail, but ultimately admitted he was having an affair with a woman in Argentina, who he described as his "soul mate." His wife filed for divorce later that year. Sanford remained in office through the end of his term in 2011 and successfully ran for his old seat in the U.S. Congress in a May 2013 election.