Lawrence: Trump's middle finger to auto worker proves he is the vulgarian-in-chief

Tonight on The Last Word: The Department of Homeland Security confirms a new non-fatal shooting by a federal agent in Minneapolis. Plus, Obamacare enrollment drops by 1.4 million as premiums rise. Also, Trump escalates his fight with the Federal Reserve. Senator Amy Klobuchar, Rep. Brendan Boyle, Jason Furman, and Lt. Gen Mark Hertling join Lawrence O'Donnell.