The president’s new directive hasn’t resolved the crisis, Harris said after talking to three immigrant mothers who told her their children were taken at the border. More than 2,300 children were in federal custody as of Monday after being taken from caregivers under what the Trump administration calls a “zero tolerance” policy for border crossings.

“This is outrageous,” Harris told a crowd of several hundred protesters outside the Otay Mesa Detention Facility near San Diego. “This is clearly a crime against humanity that is being committed by the United States government and we have to stop it.”