Watch Georgia...

According to the CBS exit polls, African American turnout in the Peach State is up five points as a share of the electorate since 2004.

Why is that important? 

Because it means that black voters will comprise 30 percent of the electorate there this year. That's the typically considered the magic number for Obama--the point at which flipping Georgia, which twice voted for George W. Bush by double-digit margins, becomes a definite possibility.

Right now, McCain is leading 63-36 with four percent of precincts reporting. Among the outstanding areas, however, is Obama-friendly Atlanta. So stay tuned.