Article snippet: WASHINGTON (AP) — A federal judge on Monday ordered former White House counsel Donald McGahn to appear before Congress in a setback to President Donald Trump’s effort to keep his top aides from testifying. The outcome could lead to renewed efforts by House Democrats to compel testimony from other high-ranking officials, including former national security adviser John Bolton. Not even the president’s closest aides who receive a subpoena from Congress can “ignore or defy congressional compulsory process, by order of the President or otherwise,” Judge Ketanji Brown Jackson wrote in ruling on a lawsuit filed by the House Judiciary Committee. McGahn was a star witness in special counsel Robert Mueller’s investigation, and Democrats wanted to question McGahn about possible obstruction of justice by Trump. That was months before the House started an impeachment inquiry into Trump’s effort to get Ukraine to announce an investigation of former Vice President Joe Biden. The administration will appeal Jackson’s ruling. ‘‘This decision contradicts longstanding legal precedent established by Administrations of both political parties,’’ White House press secretary Stephanie Grisham said. “We will appeal and are confident that the important constitutional principle advanced by the Administration will be vindicated.” The Justice Department will seek to put the ruling on hold in the meantime, department spokeswoman Kerri Kupec said. William Burck, an attorney for McGahn, said th... Link to the full article to read more