According to NBC News, Michael Flynn abruptly quit as President Donald Trump’s national security adviser on Monday night, hours after after the Justice Department informed the White House, that it believed he could be subject to blackmail. The resignation also came after previous disclosures that Flynn had misled Vice President Mike Pence and other senior officials about his communications with Sergey Kislyak, Russia’s ambassador to the United States. A senior official told NBC that the situation has become "unsustainable." because he had lied to the president and the vice president.
