It's hard to disguise an affair when you have to fly to Argentina to carry on. :P
Sandford chose his mistress (I'm assuming it's a female) over his wife and kids (flying down on Father's Day) even as he was apparently ending the affair.
He needs to get his shit together if he wants to remain Governor for the rest of his term. There's certainly no reason to re-elect him as there is a wealth of political talent that can take his place. As good as he's been with economic programs his actions the past few days demonstrate a remarkable lack of wisdom when it comes to the priorities of an elected official.
Perhaps he should look into retirement programs in Argentina for American citizens.