The Last Word with Lawrence O'Donnell 08/18/17

Bannon declares war, says 'that presidency is over'

Just hours after it was announced he was out of the administration, Steve Bannon gave an interview where he said the Trump presidency is "over," and he's already back at Breitbart. Ali Velshi discusses with Steve Schmidt, Jonathan Capeheart, and Wil Hylton. ... more Duration: {{video.duration.momentjs}}