GREENBELT, Maryland — A federal judge ordered an “intense” two-week inquiry into the Trump administration’s refusal to seek the return of a man who was wrongly deported from Maryland to a notorious prison in El Salvador.

A U.S. judge on Tuesday demanded U.S. officials provide documents and answer questions under oath about what it had done to secure the return of a man wrongly deported to El Salvador, ramping up an inquiry into whether the Trump administration defied a court order.