He should be made to testify under oath before the House and Senate for his involvement, then Senator Graham needs to be compelled to testify under oath since he has opened an investigation on the Bidens, so he has to have a reason, evidence , to start this now, and who is his sources, was it first hand or hearsay , and was he told by trump to start this under oath and asked if he has any ties to russian money, putin , or corruption going on from them. Has he been directed to advance russian services talking points and agenda for them? Sure looks like it. If they don't they'll just continue trying to drag others falsely into this. The GOP in Congress know the talking points they're projecting and promoting are russian generated propaganda, and trump knows this too but still projects and promoted it knowing its false. Its a disinformation operation from Putin they are pushing, and they should be made to testify under oath and exposed or charged for lying under oath.