California criminal justice advocates are warning that the state's closed prisons are vulnerable to federal takeover, as Trump's Alcatraz proposal has sparked a conversation about the state's infrastructure and the need for permanent closure and redirection of funds into housing,

President Donald Trump announced he wants to reopen Alcatraz, the prison near San Francisco that was featured in prominent movies and held famous criminals. The move was unexpected and shocked many. The prison is a museum and hasn’t been in operation for decades. But Trump wants the prison to “house America’s most ruthless and violent offenders.”