Democrats unveil new plan to tax billionaires

Tonight on the Last Word: Fair Fight Action Founder Stacey Abrams discusses working to help eliminate personal medical debt. Also, writers, academics and political activists write an open letter in defense of democracy. Plus, Donald Trump’s lies are fueling threats and violence. And some conservatives lash out over masks and lessons about racism in schools. Todd Gitlin, Bill Kristol, Joyce Vance, Matt Miller, Everton Blair and Jonathan Capehart also join Lawrence O’Donnell.