Former Trump administration national security adviser Michael Flynn has split with his Covington & Burling legal team as he awaits sentencing on charges that he lied to the FBI.

In a court filing Thursday, Covington attorneys said Flynn was “terminating” his defense lawyers at the firm and had “already retained new counsel.” The revelation came in a motion, filed by Covington partners Robert Kelner and Stephen Anthony, to withdraw from Flynn’s case in Washington federal court.