Santorum’s working-class background and manner might give him an appeal to Rust Belt voters that Romney could never match. And while Santorum lost his last election by a landslide, no one can doubt that he’s a skilled politician. A couple of months ago, he was driving himself to campaign stops in order to save money. Look where he is now.

And look where we would be if somehow he got elected: quite possibly, at war with Iran.

I do not say this lightly. With the exception of Ron Paul, the Republican candidates have competed to see who can be most hawkish on Iran’s nuclear program. Santorum wins, hands down. He has said flatly that, unless Iran agrees to open its nuclear facilities to inspection and begins to dismantle them, as president he would order military strikes. In fact, Iran is already under nuclear inspection, but Santorum seems not to care. He has said he believes an attack by Israel or the United States is probably inevitable.