CNN's Jake Tapper asks Democratic Sen. Mark Warner about the latest updates in special counsel Mueller's investigation into alleged Trump-Russia ties. Warner is the vice chair of the Senate Intelligence Committee. He said when it comes to allegations that Paul Manafort or Roger Stone secretly dealt with WikiLeaks, "Robert Mueller still has much left to reveal."
SEN. MARK WARNER: Or was it because at some point during the campaign -- and I think special prosecutor Mueller's zeroing in on Roger Stone as well -- was there some communication about what the Russians had and the potential then release through WikiLeaks and the ties between WikiLeaks and Roger Stone? That's a whole chapter that I think that Mueller still has much to reveal.