In theory, vice presidential debates shouldn’t matter that much — only 18 percent in a recent Rasmussen Poll said it would be “very important” to their vote — and that’s the way it should be. Neither guy, one hopes, will be president and the basic task of each is to demonstrate, if disaster strikes, that he would be up to the job. Biden has proven before that he would be, and Thursday night Ryan seemed competent on a national stage.
Yet this particular debate did matter and especially for Biden. He had to stem the Mitt Romney surge that over the last week has remade this race. He may have helped slow it, but probably it hasn’t been reversed.