US election 2020: Trump’s impact on immigration - in seven charts - BBC News
▻https://www.bbc.com/news/election-us-2020-54638643
The number of people admitted to the US as refugees each year is determined by a system of quotas, the size of which are ultimately defined by the president. People seeking to move to the US as refugees must make their applications from outside the country, and need to convince US officials that they are vulnerable to persecution at home.