On Friday, President Trump signed into action an executive order which bars all refugees for 120 days and imposes a travel ban from seven predominantly Muslim nations for 90 days. Almost immediate there was confusion...and protests.
This issue has also raised a lot of legal questions: how far does the President's authority reach when it comes to refugee policy?
What are the possible legal challenges to the executive order?
And how will the ban play out over the days and weeks to come?
To help us break it all down, A Martinez spoke with Hiroshi Motomura. He's a law professor at UCLA, author of a number of books about immigration and citizenship.