At a White House briefing Monday, Nielsen defended the Trump administration’s newly enforced “zero tolerance” policy for people trying to cross into the U.S. from Mexico without visas. Nielsen falsely claimed that federal law requires family separation when parents, even those legally seeking asylum, are held for prosecution. And she said family separation is not a new policy.
So far this spring more than 2,300 child migrants have been separated from parents — many fleeing violence in Central America —…