“CHAIN MIGRATION”, the process by which American citizens and green-card holders (permanent residents) bring family members to the United States to live, used to be a neutral term. It has, after all, existed since the nation’s founding. Like many Americans, President Donald Trump is the descendant of immigrants who benefited. After Friedrich Trump, Mr Trump’s grandfather, became an American citizen in 1892, he returned to his native Germany to marry Elizabeth Christ, and brought her with him to America. Similarly, Mr Trump’s mother came to the United States from Scotland to join a sister who was already in the country.