The flood of Obama = Nunn ads and the dropoff in brown turnout make me very pessimistic about this race.
Of course there's going to be a flood of Obama = Nunn ads. That's standard operating procedure for any election where a moderate is running in a state with an unfavorable partisan landscape. If Nunn's campaign team doesn't have an effective counter prepared then they're utterly incompetent and don't deserve to win this election anyway.
Paging Adam Griffin with his charts on the racial turnout. Whites will almost certainly make a greater percentage of the electorate than in 2012 yes but non-white vote share will probably even be higher than it was in 2008 if you look at the trend.