The travel ban, a policy which limits immigration to the United States from several ‘high-risk’ countries, was proposed and implemented by the Republican Trump Administration. The Democratic platform condemned the ban on multiple occasions, criticizing it mainly for its concentration on majority-Muslim nations. Polling indicates that while 81% of Republican voters approved of the travel ban, only 9% of Democratic voters do.
Travel ban refers to President Trump's executive order to inhibit the travel and refugee resettlement of people from certain nations.