but some religious people may be moving to the Republican party and vice versus. Particularly the Tea party branch which seems to be more connected to religion than the GOP in general. In any case, all it requires is a shift in expressed belief.

I just don't think this is meaningful. Along comes a new Messiah and the belief in evolution does a 180. Nothing else changes as long as they are still washed in the blood of Jesus. I don't think evolution is a deal breaker.

Being religious may have a relationship to stupidity but there are many religious people who reject evolution simply because it is against the law and they are conditioned to obey laws and accept things on faith. Faith = don't question just obey/believe. This is not the same as stupidity.

People shift their political beliefs both ways and and the public expression of their religious and political positions are affected by many factors. If you are involved in social media you would see how it works. If you like the conservative positions of the Tea Party it is difficult to publicly express a belief in evolution just as it is difficult to parse your political positions if you are a Nazi, Communist, or a liberal Democrat. This social pressure is, indeed, exploited on both sides.