Margaret Winter is the Associate Director of the ACLU National Prison Project. She was lead counsel for plaintiffs in the case that led to the closing of Mississippi's supermax prison. She is currently challenging overcrowding, excessive force, mistreatment of the mentally ill, and other unconstitutional conditions of confinement in the Los Angeles County Jail, the largest jail in the nation. Winter has successfully argued a prisoner's rights case in the U.S. Supreme Court.
