Federal Reserve Governor Stephen Miran has resigned from his position as chair of the White House Council of Economic Advisers (CEA) to focus on his role at the Fed. Miran had previously taken unpaid leave from the CEA to fill a sudden vacancy on the Fed’s board. While his initial term expired on January 31, he explained in his resignation letter that he had promised the Senate he would step down from the council if he remained on the board past that date.

President Trump has announced plans to nominate former Fed Governor Kevin Warsh to replace Jerome Powell. This move would fill Miran’s current seat, though the law permits Miran to stay in the position until the Senate confirms a successor. The White House has not yet said whether Pierre Yared, who is currently the acting chair of the CEA, will take the job permanently.

During Fed meetings, Miran has been a vocal supporter of cutting interest rates aggressively. Meanwhile, the Department of Justice (DOJ) has launched investigations into both Powell and Fed Governor Lisa Cook. Cook has denied any wrongdoing and is currently suing to stop efforts to fire her. A majority of the Senate Banking Committee has spoken out against the DOJ probe, calling it a form of political intimidation, and members have signaled they may block Warsh’s nomination in response.