Donald Trump's "Muslim Ban" - Mike Pence's Tweet (Dec 8th, 2015)

…Except it wasn't a 'muslim ban', but a ban created from a list of terrorist-prone countries that Obama made?

That had a preference for "minority religions" (i.e., Christianity) and various Muslims weren't able to enter the country, even if they had green cards.
This is Bannon's work. Remember that.