I'm confident that Nunn will win. As we've seen before, Perdue is gaffe prone, he has never run a serious campaign before, and it will show. He also has a lot of skeletons in the closet, and believe me, the Nunn campaign will define him before they can define her. She's got the money for it, where he really has a self-funded campaign. Nunn will win in the first round.
Perdue came from behind to win the primary even as the entire Republican Party endorsed the other guy. Even with his gaffes, the man is a talent.