Trump showed ‘deficit of discipline’ if he revealed info to Russians, expert says

NBC News senior national security contributor Juan Zarate says that while President Trump may have been trying to create trust with the Russians if he revealed highly classified information to them, the Russians aren’t trustworthy and could use the information against the U.S. NBC News political analyst Nicolle Wallace says that if Republicans in Congress decide Trump can’t be trusted with national security, “I don’t know how they proceed.”