This one is interesting, though. I do not know to what length Bannon could have gotten questions concerning FBI participation into the record before being silenced by the Chair in the complete absence of defense cross-examination. (There isn't, actually, a defense at all, no discovery, nothing remotely resembling an honest trial. It's a fake.) If that story does have legs and the evidence is able to be corroborated, they might be left with the options of admitting it or shutting the hearings down altogether. Not the desired effect.
Why don't you start with "Congress is not a court, it has no Article III powers, and with the exception of the Senate in a case of impeachment, they have no authority to conduct trials".
Why don't you start with "Congress is not a court, and with the exception of the Senate in a case of impeachment, they have no authority to conduct trials".