situations where he had recalled ambassadors for cause. cnn s sunlen surfougerfaty is o capitol hill. the second time the trump administration tried to block from speaking to congress. also gordon sondland. this is pretty stunning. reporter: certainly is, brooke. certainly significant of a development. so much speculation leading into this morning whether marie yovanovitch would show up, allowed to show up or not essentially leadi ining into th moment we re seeing arriving on capitol hill and she centered the room here where she s meeting with lawmakers. the dramatic back story learning what went on behind the scenes is stunning. according to the three house committees here speaking with her, those chairs saying it came to their attention that the state department at the direction, they say, of the white house directed lett eed h