Sunday Polling Crack

North Carolina:

The national picture:

There is simply no evidence as of yesterday's releases of a late narrowing of Obama's margin. The margin on our national trend has ticked up about a point in Obama's favor over the last two days. As usual, none of the national tracking surveys showed anything approaching a statistically significant change. Five of those results showed small, nominal shifts in Obama's direction, two showed unchanged margins and only one showed a small shift in McCain's direction.