On January 27, 2018, President Trump approved a sweeping executive order that suspended entry of all refugees to the United States for 120 days, barred Syrian refugees indefinitely, and blocked entry into the United States for 90 days for citizens of seven predominantly Muslim countries: Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen. It also barred green card holders from those countries from re-entering the United States, the Department of Homeland Security said, though the administration said exemptions could be granted.