Most of the red states seem to be getting redder "on their own" -- often by virtue of new traditional-minded transplants moving in.
But one formerly reddish state -- Georgia -- is in trouble, however. Seems like it's in the process of "tipping over into the blue" -- perhaps also as a result of transplants. But in the case of GA, it's black emigres from the North moving into the Atlanta area. Soon they'll have amassed enough political power to control that state the way New York City controls NY state.