Tonight on the Last Word: Texas Democrats plead with Congress to pass voting protections as Republicans restrict voting access. Also, four more Oath Keepers have been accused of conspiracy in relation to the Jan. 6 insurrection. Plus, President Biden sets an early June deadline to reach a deal with Republicans on infrastructure. And Biden honors the victims of the Tulsa Race Massacre. Julián Castro, Arizona Secretary of State Katie Hobbs, Daniel Alonso, Jennifer Palmieri, Eddie Glaude, Caleb Gayle and Jelani Cobb join Lawrence O’Donnell.