And the pressure to clarify what exactly is happening to Christians and other minorities in the Middle East is certain to intensify in the New Year.

If you're wealthy like Donald Trump is, and you have a preacher who says your wealth is a sign God approves of you, you're probably going to like that preacher. And if there is one major element in Donald Trump's religious beliefs, it would be this prosperity gospel.

Being out of the mainstream is entirely consistent with the way Donald Trump is approaching his presidency.

The First Amendment to the Constitution says government can't establish a religion, but neither can it limit the exercise of religion. And that's the issue here. What does it mean to be free to exercise your religion? It's not about what you can believe. It's whether you can act on those beliefs.

There's a culture war in this country. Americans in recent years, as you know, have become more secular. They don't go to church as often. Bible reading, prayers in public are now frowned upon. And, of course, in addition to that, a lot of people have become much more supportive of LGBT rights. And in reaction to that, biblically conservative Americans feel that their faith is under assault.

Hispanics are the fastest-growing evangelical group in the country right now, an important constituency. But Trump's views, especially his views on immigration, did not exactly go over well with this faith constituency. Rev. Rodriguez told me that Trump's invitation created something of a stir in his world.

Trump has always talked about how important in dealing with foreign leaders, how important it is to establish a good personal relationship very close to what Pope Francis says, so they may both really want to emphasize their development of a personal relationship.