I don't usually comment on the various political wick-dipping episodes, but this Sanford guy has me seriously baffled. His wife discovered the affair back in January and while they are "working on their marriage" he keeps "asking her for permission to visit Argentina?" Really?
There are quite a few debatable reasons for him to resign; abandoning his office, moral turpitude, frolicking at taxpayer expense, being generally pathetic... But asking your wife for permission to visit your mistress?
The man is a loon. Ipso loquitor. "The thing speaks for itself."