WASHINGTON, D.C.— Former FBI General Counsel James Baker on Thursday testified that he briefed then-FBI Director James Comey and Deputy Director Andy McCabe on allegations brought to him by Clinton campaign lawyer Michael Sussmann in September 2016 claiming a covert communications channel between the Trump Organization and a Kremlin-linked bank and confirmed that the FBI was “already conducting an investigation” into possible ties between Russia and then-candidate Donald Trump at the time of the Sussmann meeting.