Just off the top of my head, probably unworkable: a PAC that gives $5,000 or more to any GOP candidate for any office who states that the GOP candidate is not suitable to be President of the United States. No, half-measures (see Portman, Rob, or Szeliga, Kathy) would not count. (Szeliga has, er, trumped Portman, but she still has not come out and said it. I would say that she and Nikki Haley have made ¾-measures. Still not really enough, though.)
Anyway, if some rich people really want to stop Fat Crybaby without hurting the party’s chances, that would be the way to go. There seems to be a real first mover problem.
I still don’t understand Jon Huntsman. Could this really be just a way for him to stick it to Mitt Romney? The fellow who suggested also seems to think it still makes no sense, but I am at a loss to propose alternatives.