Arkansas didn’t have nearly the Republican gains that Tennessee and Oklahoma did. It’s worth noting that the Governor made a serious effort to further reduce Republican presnece in the state legislature, unsuccessfully.
The reelection of GOP state Senator Gilbert Baker was significant, as his district usually votes Democrat.
I wrote this piece last Thursday analyzing the situation in AR: http://www.freerepublic.com/focus/news/2127018/posts?page=46#46