Biden national security adviser pushed collusion claims after they were debunked. An attorney for the Clinton campaign exchanged emails with Biden national security adviser Jake Sullivan regarding a discredited theory of Trump-Russia collusion at the center of an ongoing special counsel investigation, the New York Times reports. Attorney Marc Elias exchanged emails with Sullivan and other Clinton campaign officials on Sept. 15, 2016, regarding a purported link between the computer servers of Donald Trump’s real estate company and the Russian oligarch-owned Alfa Bank, the Times reported. Elias and Michael Sussmann, partners at the firm Perkins Coie, shared the data with...