Donald Trump’s controversial “zero tolerance” policy, and the resulting images of migrant children being wrenched from their parents arms, were defining moments of his administration. On Biden’s first day in office, he proposed a raft of changes to America’s immigration policy, including an eight-year path to citizenship for undocumented immigrants and a plan for an orderly resettlement of refugees. But over 4,200 migrant children are currently being held in custody, and the process to deal with them has fallen into chaos.Jonathan Blitzer joins Dorothy Wickenden to discuss the surge in border crossings, and Biden’s options for addressing the migrants’ plight.