This New York Times story by Adam Nagourney and Marc Santora about McCain's resurgence in New Hampshire brings up a good point. Namely, following months of poor fundraising, McCain's position elsewhere in the country is tenuous:

Mr. McCain has nowhere near the resources he did in 2000. His once gold-plated campaign organization collapsed last summer, unable to raise the money needed to sustain it. Mark McKinnon, his media adviser, is putting together advertisements for Mr. McCain at cost -- allowing him to at least hold his own with his main opponent, Mitt Romney, on the air in the final hours of the campaign here. ...

And Mr. McCain's post-New Hampshire prospects, should he win on Tuesday, are if anything less certain than they were 2000, when he left this state confident that he would beat Mr. Bush. He has barely any organization in Michigan, the next state to vote, said Saul Anuzis, the state Republican chairman there. Mr. McCain was forced to lay off all but one of his staff members because of his financial difficulties.

He has more of a presence in South Carolina, but there he would face a tough challenge from Mike Huckabee, the former governor of Arkansas, said Katon Dawson, the party chairman there. "He has a pretty strong team here," Mr. Dawson said. "I wouldn't write the senator off."

If we've learned anything in last couple months it's that we should never write off John McCain. But his small operations elsewhere in the country make winning today by a significant margin that much more important. Romney's got the resources, but, like Hillary, he needs to hold on to his supporters. If they see him as a loser, which might happen if McCain wins handily, they will peel away. McCain will get a boost out of New Hampshire, the trick is to make it as big of a boost as possible.