The Last Word with Lawrence O'Donnell 08/08/17

Lawrence: 'Unpredictable liar' Trump faces first dangerous crisis

Lawrence O'Donnell looks at what President Trump was doing as news broke that North Korea has "successfully produced a miniature nuclear warhead" and the potential consequences of Trump's later reaction, threatening "fire and fury like the world has never seen." ... more Duration: {{video.duration.momentjs}}