John Durham’s inquiry into the origins and conduct of the Trump-Russia investigation is chugging along during the Biden administration, with the special counsel arranging witness interviews and issuing subpoenas in recent months, according to a new report.

President Joe Biden asked all Senate-confirmed U.S. attorneys for their resignations in early February, with Durham being asked to step down as U.S. attorney for Connecticut but to stay on as special counsel. Durham resigned from his federal prosecutor post in late February but continues his investigation of the investigators.