I hope REB will post, because he had some interesting insights into this question on the Intelligent Design thread recently on CE.

It's the last sentence that I'm inclined to pick apart:

Can a God-fearing/God-worshiping Republican be a good Scientist?

"God-fearing" evokes the primitive fundamentalist style of religion that's completely at odds with science. I'd say no.

"God-worshipping" depends on the degree to which such worship is allowed to suppress rational thought. It can blend easily into "God-fearing". On the other hand, personally I think worship in the vein of "render unto Science what is Science's" is the kind that REB describes as not in conflict with science, and I tend to agree with him. There is such a thing as the enlightened practice of religion.

Can a Republican be a good scientist? Politics mixes as badly with science as does religion. Given the heavy does of religion in the official ideology of the Republican Party these days, as well as the regrettable tendency to discount science when it conflicts with profit or the pursuit of power...well, I'd start out skeptical of a "Republican scientist", just as I'd be skeptical of a "Christian scientist" (small "s") or a "tobacco company scientist", for the same reason. Identifying oneself as a member of two conflicting belief systems or organizations reeks of hypocrisy and conflict-of-interest. A scientist who is "only" a scientist has a lot more credibility with me.

You didn't ask about "Democrat scientist", but my answer would be the same. Politics has no place in science.