Within hours of the newscast, Mr. Trump had fired off a tweet claiming that there was “large-scale killing” of white farmers in South Africa, and that he had directed the State Department to “closely study the South Africa land and farm seizures and expropriations.”

On the same day that dozens of white South Africans arrived in the United States as refugees, at the invitation of President Trump himself, his administration said thousands of Afghans could be deport...

Some leading Afrikaner activists say they would prefer Mr. Trump help their cause at home rather than offer refugee status in the United States.