For the second time in two months, Michael Flynn’s lawyers are set to appear virtually Tuesday before a federal appeals court in Washington, where they will press for the onetime Trump national security adviser’s case to be dismissed.

Coming nearly three years after Flynn first pleaded guilty to lying to the FBI, the hearing is shaping up as a remarkable moment. It marks a rare sitting of the full U.S. Court of Appeals for the D.C. Circuit, in a case that pits Flynn against the federal judge who refused to immediately sign off on the Justice Department’s unusual move in May to abandon the Trump associate’s prosecution.