Rafael Mangual joins Seth Barron to discuss the disturbing leftward trend among urban prosecutors in major cities and the consequences of undoing the crime-fighting revolution of the 1990s. In recent years, cities like Philadelphia and Chicago have elected district attorneys dedicated to the principles of social-justice and the goal of "dismantling mass incarceration." The shift away from proactive law enforcement has opened a rift between police and local prosecutors and points to more trouble ahead for many cities.