Judge Emmet G. Sullivan should not be required to act as a mere rubber stamp for the governments unusual move to undo the guilty plea of President Trumps former national security adviser Michael Flynn, the judges lawyers told a federal appeals court in Washington on Monday. Sullivans attorneys asked the appeals court to stay on the sidelines to give the judge an opportunity to ensure the integrity of the judicial process and to rule on the Justice Departments request to dismiss Flynns case.