As Hillary Clinton — still — spins away her debate performance of last week (You’d think she’d just let the story die of its own accord by this point — this doesn’t speak well for her campaign’s potential handling of GOP criticism in a general election, and they’re definitely watching carefully over there), the Democratic races in Iowa and New Hampshire start to tighten, with Clinton up three and ten on Obama in IA and NH respectively. (Edwards comes in third in both states at the moment.) And, in related news, a new USA Today poll further calls into question Clinton’s crossover appeal: “In a general election, the poll suggests that Clinton has the least potential for winning votes from Republicans — 84% say they definitely would not vote for her, compared with six in 10 for either Obama or Edwards. Independents show the least resistance to Obama and the most to Edwards.” (That being said, some tightening in the polls was inevitable as the finish line nears, and that same USA Today poll still has Hillary beating Rudy in a national contest, so there is a silver lining here for the Clinton camp.) Update: Slate‘s John Dickerson reports in from Iowa on the Clinton-Obama race: “‘Why isn’t he killing her?’ asked a colleague after Obama’s hour-long visit. It’s the persistent question for his campaign. He wows the crowds but lags in the polls everywhere but Iowa.“