Georgia has always scared me because, like a lot of states in the south, it doesn't have a huge history of crossover voting - it tends to be more straight ticket voting as opposed to split tickets. And Kemp, for better or worse, is likely to win reelection regardless of the Senate race. Having said that, the state is changing.... it's become more diverse, especially in Atlanta and the surrounding suburbs, and they generally nominate better candidates than Walker.
And the Walker stuff, while it won't turn off most who would vote for him, in a race this close and where a runoff was always a likely result, the allegations really could make a difference on the margins and could be the difference between a Walker win, a runoff, or a Warnock win. The margins coming into this week were that close, every little bit matters.