Michelle Obama’s speech was almost exactly twice as good as Mitt Romney’s, at least according to Twitter. It’s possible that points to a difference in the media habits of people who watch the DNC and the RNC, respectively, but I’m going to say it’s because she was twice as good. Lots of people agree with me, even if Charles Krauthammer issued a formal bah, humbug. “And the brilliance of it is this,” he said: “It drained Obama of any, either, ideological motivation, or any having to do with self-interest or ambition, which I think is sort of a more plausible explanation.” You saw through it, Krauthammer: the president is ambitious.