John Brennan, former CIA Director, joined Deadline: White House to share his first public comments since the Justice Department opened an investigation into him and former FBI Director James Comey. "I think this is, unfortunately, a very sad and tragic example of the continued politicization of the intelligence community," he told Nicolle Wallace. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.