Why Trump decided Nielsen wasn't tough enough on immigration

On Sunday, President Trump announced the resignation of Homeland Security Sec. Kirstjen Nielsen, who reportedly was forced to step down amid Trump’s growing frustration with the growing number of migrants at the U.S.-Mexico border. Amna Nawaz reports and joins Judy Woodruff with Yamiche Alcindor to discuss why Nielsen fell out of favor with Trump and what the shakeup means for immigration policy.