John Edwards committed the perfect crime. He began an affair with campaign videographer Rielle Hunter on the night she waited outside his New York hotel and told him he was “hot” and later produced a child with her. Yet he didn’t suffer for it at the polls. He lost his bid for the White House in 2008 simply because voters, who knew nothing of his dalliance, concluded that he wasn’t presidential timber. Nor was he denied access to his children, as men in his situation so often are. Instead, he won them in an existential custody fight that his wife lost by dying.