Percentage of Republicans who believe in evolution is shrinking

[RainDog]

26. True. Democrats have social conservatives, too

and they are comprised of religious voters, for the most part.

There are some who don't believe in evolution who don't subscribe to a religious belief that states the same, but they're few and far between. Catholics don't insist on creationism - the belief is really concentrated among fundamentalist churches. (who, btw, were supporters of Roe v. Wade until the protestant fundamentalists shifted to more conservative leadership and change their position... which demonstrates they are capable of changing their stances if they think it benefits them in some way.)

The biggest indicator of whether or not someone accepts that evolution is the best scientific evidence is the level of education. But those with higher levels of education are also those who are least likely to affiliate with any particular religious belief, too.