Biden Says He Will Not Appear Voluntarily If Called as a Witness in Senate Impeachment Trial

EXCERPT:

REPORTER: "... now saying that if there is a Senate impeachment trial they might like to call you as a witness. Is that something where you would appear voluntarily?"
BIDEN: "No I’m not going to let them take their eye off the ball. The President is the one who has committed impeachable crimes and I’m not going to let him divert from that, not going to let anybody divert from that.”