the first democratic debate's coming up in just 48 hours from now. it's clear that one of the central axis of debate in the democratic party in this collection is criminal justice, policy and reform. senator kamala harris' record as a prosecutor, cory booker's call for large-scale clemency for nonviolent drug related offenses. most recently, mayor pete buttigieg facing heated criticism from black residents of south bend for the oversight of that city's police department whose officer shot and killed a black man in that city on june 16th. the democratic party is right now very publicly wrestling with how to advance racial justice and fused together a strong multiracial coalition in the era of donald trump and into the teeth of acute white backlash. joining me now, bryan stephenson, executive director of the equal justice initiative. subject of the new hbo documentary "true justice." debuts on hbo on wednesday.