If these comments were transcribed by a court reporter, it would be impossible to make heads or tails of it. Definitely need the video to see which comments are to the witness and which are directed to the Senators.
I heard it o the radio, and I understood who he was talking to. It was his Trumpian moment, speaking from the heart, not letting proper diction get in the way.
But, yeah, he could have used the pronouns of who he was addressing.