The Last Word with Lawrence O'Donnell 12/15/15

Jeb Bush: Trump is a 'chaos candidate'

Donald Trump's call to ban Muslims from entering the United States dominated the fifth Republican debate in Las Vegas. Jeb Bush took aim at Trump, while Rand Paul and Ted Cruz sparred with Marco Rubio over metadata collection. Lawrence talks with Stuart Stevens, Steve Schmidt, and Maria Teresa Kumar ... more Duration: {{video.duration.momentjs}}