Nine months after the historic investigations into Russian meddling in the 2016 U.S. elections, Target USA speaks with Sen. Mark Warner, D-Va., Vice Chair of the Senate Intelligence Committee. Among the stunning developments he shares are that Russia has not stopped trying to interfere in U.S. affairs, that the Steve Bannon revelations in the book "Fire and Fury" contributed to several new threads that will likely extend the investigation, and that some of those who've already testified may have to come back.