I'm with David Frum on this from yesterday: But Obama? McCain’s attack on him is the equivalent of the William McKinley campaign attacking William Jennings Bryan for having kept company with Nathan Bedford Forrest decades after the Civil War. Yes, the old rebel was an unrepentant traitor. Mostly though, he was all washed up. Republicans have been fighting this second American civil war for eleven election cycles now. It’s been a good run! But just as 19th-Century Republicans eventually ran out of Union generals from Ohio, so the modern Republican Party has bumped up against the statute of limitations on...