I don't know what to make of the GOP race. It's hard for me to believe that Rick Santorum is going to catch fire. It was an impressive feat of focusing on Iowa combined with lucky timing that caused Iowa voters who didn't want to vote for either Mitt Romney or Ron Paul to vote for Santorum.
If Newt Gingrich really does continue to attack Romney, I can see some of his votes going to Santorum. I think, though, that Romney is going to have to stumble to create a serious challenge to his nomination.
We're going to see six full days of attacking Romney from Gingrich, Santorum and John Huntsman (who's been laying in wait in New Hampshire), including two debates, where Romney will be less able to pretend to be above the fray.
If Romney's numbers come down in New Hampshire and Santorum finishes in second, Gingrich, regardless of his finish, vows to battle on.
We'll see a real test of Romney's skill at taking punches. If Romney can't fend off some good blows, he'll have to turn from acting as if his only real opponent is the president and show he can counter-attack.
More voters would continue to switch to Romney as their first choices fade — if Romney appears to be a worthy challenger to the president.