US-MEXICO-IMMIGRATION-MAYORS-MIGRANTS

Shoes are left by people at the Tornillo Port of Entry near El Paso, Texas, June 21, 2018 during a protest rally by several American mayors against the US administration's family separation policy. - President Donald Trump ordered an end to the separation of migrant children from their parents on the US border June 20, 2018, reversing a tough policy under heavy pressure from his fellow Republicans, Democrats and the international community. The spectacular about-face comes after more than 2,300 children were stripped from their parents and adult relatives after illegally crossing the border since May 5 and placed in tent camps and other facilities, with no way to contact their relatives. (Photo by Brendan Smialowski / AFP) (Photo by BRENDAN SMIALOWSKI/AFP via Getty Images)