Seventeen hours before polls open in the Constitution State, Hillary Clinton and Barack Obama are neck-and-neck. Right now, it’s 48% Obama, 46% Clinton, with Obama losing some of his lead among men and young voters as Clinton simultaneously gives up some of hers among women and older voters. Full results, tracking, and analysis are here.

As in most — Massachusetts remaining the exception — of the northeastern polls SurveyUSA is tracking for Super Tuesday, John McCain is maintaining a comfortable lead over Mitt Romney, 22 points in this case. Full GOP results, tracking, and analysis here, and more of an in-depth look at the Republican contests later today, when we look at states where those candidates are bunched more closely together.