U.S. District Judge Emmet Sullivan in Washington will return to the national spotlight Tuesday when he sentences Michael Flynn, a former lieutenant general who briefly served as President Donald Trump’s national security adviser, for lying to federal investigators in their probe into Russian interference in the 2016 U.S. election.

Sullivan, a Clinton appointee to the U.S. District Court for the District of Columbia, will decide whether Flynn goes to prison. Flynn’s defense attorneys from Covington & Burling and prosecutors working under special counsel Robert Mueller III have both recommended a sentence without jail time, citing Flynn’s extensive and timely cooperation with the government.