SC Gov. Sanford on Mystery Disappearance: 'I've Been Unfaithful to My Wife'

AP: South Carolina Gov. Mark Sanford says he’s been having an affair and will resign as head of the Republican Governor’s Association.
The married father of four emotionally apologized to his wife, staff and others after returning Wednesday from a trip to Argentina that followed a dayslong absence. He staff had said the Republican was hiking on the Appalachian Trail.