Trump has a lot of very Christian friends and a good few supporters whose agenda include only christian ideals. Do you think that all of these people, and Trump himself have conveniently forgotten that Ivanka Trump is now Jewish? No odds to me. Believe in what god you want. It's just that all those white supremacists - some Trump said were good people - follow him like he's the next coming of christ.
This is because evangelicals have irrevocably attached themselves to the GOP, it seems. Trump is unquestionably not a Christian, in fact his ideals represent everything Jesus spoke out against. The fact that Trump was elected with the evangelical vote proves once and for all the ultimate hypocrisy of American Christians.