ESCUINTLA, MEXICO - JANUARY 20: People who are a part of a caravan of Central American migrants prepare to ride in the back of a pickup truck, after the driver offered to give them a lift, on their way to the United States on January 20, 2019 near Escuintla, Mexico. Some members of the caravan are in Mexico while others are further behind in Guatemala. (Photo by Mario Tama/Getty Images)
