I HAVE to admit to a soft spot for the “Rombo’’ ad that Rick Santorum is airing in Michigan, in which a Mitt Romney look-alike runs, Rambo-like, through an empty warehouse, shooting mud through a machine gun. I like when attack ads go meta, and when they go over the top, and when they make people want to laugh instead of hide under the bed.

And I doubt Romney minds the attack. At this point, it seems, he wants to look a little bit crazy-maniacal.