At one time, Sanford was mentioned as a possible GOP presidential contender.
But his career unraveled when, as governor four years ago, he disappeared for five days, telling his staff he was hiking the Appalachian Trail. He returned to admit he had been in Argentina with his mistress. Sanford later paid a $70,000 ethics fine, the largest in state history.
Sanford has never lost a political race.
Copyright 2013 The Associated Press.