A small observation: I think Newt has adjusted well to his nominal frontrunner status. In the context of a GOP primary debate tonight he's been cool, dramatic in his own way but not over-the-top. He's ratcheted back the angry retorts, which appear to have been key to his jump into the lead. But I think he's done it in a way that may make him more palatable to a broader primary electorate without losing him what brought him to this point.
I still can't believe that Newt has any real chance to be the nominee. But I think he's done well for himself tonight.