White House official Mark Sandy testifies in closed-door impeachment hearing

Longtime White House budget employee Mark Sandy is appearing in a closed hearing on Saturday before the House committees conducting the impeachment inquiry, making him the first official from the Office of Management and Budget (OMB) to testify in the inquiry. Sandy defied President Trump orders not to appear before house investigators. Sandy was asked about the administration withholding 400 million dollars in military aid to Ukraine. Ben Tracy reports. Source