First off, the RNC has the right idea here:
Chairman Reince Priebus doesn’t want any part of this primary, and I think that we can all agree that this is a quite refreshing development, yes?
Moving on… well, it’s Romney’s to win. The question is, by how much. I’m seeing it bandied about – mostly be Gingrich’s people – that if Romney ‘only’ wins with less than 40% of the vote then he’s losing momentum. Looking at the current polling… um, no. The polling samples are closer to NH’s 2008 exit polls (which had the partisan breakdown at 61R/37I/2D) than Iowa polling was to IA’s 2008 entrance polling; so it’s a bit reasonable to think that Romney’s going to hit the upper to mid thirties in Iowa. If that also means a twenty point lead then it means that Romney won New Hampshire without particularly slowing down. Romney will only be in trouble at about +10 or so.
PS: Erick Erickson has an excellent point here, by the way, and let me add my own: every other candidate’s had a metaphorical pie thrown in his or her face. Suck it up and walk it off. This sort of thing builds character.