biden investigation. a source tells cnn he testified he didn't know why the military aid to ukraine was with hild but the unusual step led him to raise the issue with the omb general council. two more transcripts aid to vice president spence and the head to morrison. testifying that ambassador to the eu. all three will be among the eight witnesses scheduled foretell advised hearings next week. ambassador sondland will be asked about that trump phone call. joining me is democratic congresswoman on the judiciary and foreign affairs committee. welcome. ambassador sondland has already testified. given sub squnt testimony that followed, do you believe he