After a slow start, and initially making the same mistake as freddycat on 17D, I found it fairly easy. But I have just one left.
13A: Only four letters, and very few options to fit. But I can't parse any of them. The only connection with the Republication Party I can think of is George W Bush's strategist, and what he has to do with prayer I can't fathom. I am probably being thick, but help to dsperse the fog would be appreciated.