Donald Trump believes in nothing other than himself. He's just doing the Christian Right's work for political expediency. The dude is hardly religious at all, and the evangelicals just don't care as long as he nominates Federalist Society judges and stops brown people from coming in.
I think Obama and Clinton were not very religious in private. Can't answer whether they're atheists or not, though.
It’s possible to say Bill Clinton doesn’t represent a particularly devout Christian.
One interesting thing is that Elizabeth Warren and Hillary Clinton seem especially devout. That’s generally perceived - if not correctly so - as unusual for women raised in a mainline church.
