Lawyers for Michael Flynn asked a federal judge Tuesday to reject any efforts by outsiders to file briefs confronting the Justice Department’s move to dismiss the prosecution of the former Trump national security adviser, who twice pleaded guilty to lying to investigators about his past communications with the Russian ambassador to the U.S.

In a court filing, Flynn’s defense lawyers said a group calling itself the “Watergate Prosecutors” had notified U.S. District Judge Emmet Sullivan on Monday that it wanted to file a friend-of-the-court brief following the Justice Department’s abandonment of the prosecution.