What does Biden winning the United States presidential election mean for the face of the criminal justice system? His campaign made progressive promises, such as abolishing both the death penalty and cash bail. Biden additionally promised that the United States would cut its current prison population in half if he were elected president. According to his statements and promises, here are some changes Biden could make pertaining to: police reform, juvenile justice, the death penalty, bail reform, mandatory minimums, clemency, private prisons, immigration detention and reducing the prison population.