This poll just about says it all on Iowa Republican voters.
Romney up 12 on Perry with evolution believers, 22 with global warming believers. Good for 2nd place.
48% of Iowa Republicans don't believe in evolution. Perry leads Romney by 17 points with them
66% of Iowa Republicans don't believe in global warming. Perry leads Romney by 15 points with them
The question is whether this is reflective of Republican politics nationally. Jon Huntsman so far doesn't seem to be getting far with his counter-intuitive support for science.