I found this interesting. Maybe explains why the national #s are trending a bit Obama, while swing states tighten up?
“Another notable gain for Obama, perhaps reflecting Hurricane Sandy’s effect on the race, comes in a region he was already secure in: the Northeast. He has increased his lead over Romney from nine points (52%-43%) to 21 points (56%-35%) there over just the past week.”
Look at my post #18 above, from the linked poll. The “Sandy bounce” is all in the northeast!