“Close them down,” Biden answered, to cheers from the crowd. “By the way, we don’t need them. We found that when we were in office…if you would say ‘you have to report back for a hearing on such-and-such date,’ people show up. You don’t have to keep kids in a cage. There should be no justification separating a parent from a child.”
Biden was describing the now-defunct “catch-and-release” policy, which some border agents considered a troublesome loophole in immigration enforcement. Trump got rid of it.