SAN DIEGO (AP) — The Trump administration fired 20 immigration judges without explanation, a union official said Saturday amid sweeping moves to shrink the size of the federal government. On Friday, 13 judges who had yet to be sworn in and five assistant chief immigration judges were dismissed without notice, said Matthew Biggs, president of the International Federation of Professional & Technical Engineers, which represents federal workers. Two other judges were fired under similar circumstances in the last week.