A federal judge denied the request by Michael Flynn’s lawyers to withdraw from his case.

Attorneys for President Trump’s former national security adviser said in a court filing Thursday that Flynn was “terminating” them as their counsel.

“General Flynn has notified the undersigned that he is terminating Covington & Burling as his counsel and has already retained new counsel for this matter,” Robert Kelner and Stephen Anthony wrote.

Judge Emmet Sullivan denied the motion, saying it did not comply with local court rules and the attorneys’ “failure to indicate the manner in which the motion was served upon Mr. Flynn.”

It was not clear whom Flynn had hired to replace Kelner and Anthony, and his sentencing date has not yet been scheduled.

He pleaded guilty in December 2017 for lying to the FBI about his conversations with then-Russian Ambassador to the U.S. Sergey Kislyak.