I can't believe he's actually done it, these changes are happening so fast, even green card holders are not allowed to reenter the country if they leave.
https://www.theguardian.com/us-news/2017/jan/28/rights-groups-flooded-with-calls-as-people-fear-re-entry-to-us-will-be-denied?CMP=ShareiOSAppp_Other
But muslims from Saudi Arabia are fine? 