I’m normally skeptical of things like the Michael Bloomberg-for-president boomlet. But I’ve got to say, if you were a billionaire with the money to burn and some desire to be president, wouldn’t you look at the McCain and Obama campaigns and ask: Why the hell not? You’d have to be a sane Ross Perot or a Bloomberg who wasn’t a boring liberal who once made some vaguely positive noises about the Iraq war, and maybe such a person doesn’t exist. But the opening sure does. If I were 35 and had a few hundred million dollars to throw around, I’d probably do it myself.