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MEXICO CITY, MEXICO - NOVEMBER 06: Members of the Central American migrant caravan rest in a stadium after arriving into the Mexican capital yesterday on November 6, 2018 in Mexico City, Mexico. The group, which is estimated to be near 5000 in number, spent the day relaxing, eating and washing after weeks on the road in often grueling conditions. The group of migrants, many of them fleeing violence in their home countries, will conduct meetings over the coming days to decide when and how to continue their journey towards the United States border. Hundreds more are still heading north in two other migrant caravans. (Photo by Spencer Platt/Getty Images)

MEXICO CITY, MEXICO - NOVEMBER 06:  Members of the Central American migrant caravan rest in a stadium after arriving into the Mexican capital yesterday on November 6, 2018 in Mexico City, Mexico. The group, which is estimated to be near 5000 in number, spent the day relaxing, eating and washing after weeks on the road in often grueling conditions. The group of migrants, many of them fleeing violence in their home countries, will conduct meetings over the coming days to decide when and how to continue their  journey towards the United States border. Hundreds more are still heading north in two other migrant caravans.  (Photo by Spencer Platt/Getty Images)