I don't know anything about this stuff, so I'm just going to have faith that Trump read the entire deal and completely understands all of the ramifications of his actions.
I've been hanging out with some devout Christians at work. Here's my insight. The key to getting into heaven is basically believing in Christ. That's it. Your actions don't really matter; we're all sinners, anyway. Further, it's also not your place to judge anyone else.
Given this sort of stuff, I see no real issue with evangelicals embracing Trump.