On January 27, 2017, President Donald Trump signed an Executive Order that banned foreign nationals from seven predominantly Muslim countries from visiting the country for 90 days, suspended entry to the country of all Syrian refugees indefinitely, and prohibited any other refugees from coming into the country for 120 days.
For contextual info, see:
- Trump Bars Refugees and Citizens of 7 Muslim Countries — The New York Times
- Executive Order 13769 — Wikipedia
- Is this a Muslim ban? Trump’s executive order explained — The Guardian
- How Trump’s travel ban became normal — The Vox