Austin Sarat—Associate Provost, Associate Dean of the Faculty, and William Nelson Cromwell Professor of Jurisprudence and Political Science at Amherst College—comments on a decision by a panel of the U.S. Court of Appeals for the D.C. Circuit holding that U.S. District Judge Emmet G. Sullivan exceeded his power by refusing to grant the Justice Department’s motion to dismiss the case against Michael Flynn, President Trump’s former national security advisor. Sarat explains the relationship between the judiciary and prosecutors and points out that that judicial deference toward prosecutorial decisions can only be reconciled with constitutional governance if prosecutors respect, and are guided by, canons of integrity and professionalism. Sarat argues that the current leadership of the Justice Department shows utter disdain for such canons.