But not according to Fox "News!"
Funny how whenever a Rethuglican is caught in a scandal, they run out of R's and deliberately and falsely label the crooks as Democrats.
Fortunately the New York times got it right this time:
Gov. Sanford Admits Affair and Explains Disappearance
COLUMBIA, S.C. — Mark Sanford, the governor of South Carolina, said he had conducted an extra-marital affair with a woman in Argentina, ending a mystery over his week-long disappearance that had infuriated lawmakers and seemed to put his rising political career in jeopardy. He apologized for the affair and the deception surrounding his trip in a rambling, nationally televised news conference Wednesday afternoon.
Sanford, the lying adulterous rightwing tool, is a staunch opponent of gay marriage. Obviously, he's got his own definition of it.