I believe in order to even get a GOP nonimation you basically have to appear as if you care about Christian values. Its the stick and the carrot and it worked great for Trump. I mean he barely even tried. He had a few pastors pray in his office, talked about a few Christian type things but his actual life he lived is more along how most Christian probably do. THey talk a good talk but living the life is something totally different. They like the ideal of being Christian but not actually living it. This is why its so easy to manipulate the group. Just throw out a few Bible verses, say its for the kids or Christian values then pretty much do everything that goes against Christian principles with a smile.