So the total is:
46 instances of influence by/for Republicans
30 instances of influence by/for Democrats
10 instances of influence by/for Unknowns/Indeterminates
That's still a substantially larger number of churches stumping for Republicans than Democrats, and like I said, I bet if we were to look at some of the Unknowns in more detail we'd find a good number of them were Republican influence(s/ed) as well.
I know one of the things that both Barry Lynn and Rob Boston (AU's Asst. Dir. Communications & Asst. Editor. Church and State:
http://en.wikipedia.org/wiki/Rob_Boston) tried to impress on us at last year's national meeting was that often times both clergy and candidates are ignorant of the law. I think when that's coupled with this insane pandering to the religious that we've seen by both the Democrats and Republicans in recent years (remember... Obama wants to EXPAND funding for faith based charities as well as reform), and the historical role that churches have played in U.S. politics I think it's incredibly tempting for candidates to want to speak to church groups. Furthermore, many of the clergy and churches really do want to help their constituents vote their conscience. It's not all about controlling people, even when the recommendations made are ethically deplorable.
I think we have to remember too that IRS laws regarding tax exemption don't just apply to churches, but any 501(c)(3). It would be as illegal for Center For Inquiry or FreeThought Fort Wayne (although we're not a formal non-profit yet) to specifically endorse or oppose a candidate as it would be for First Baptist Church of Fort Wayne. It's just that IRS tax exemption regulations violations by religious organizations are the easiest way we have for defending separation of church and state. Everything else either has to be argued under Title VII of the Civil Rights Act of 1964 or as a Constitutional issue.