Central American migrants wait in line for a meal at a shelter in Tijuana, Mexico, Wednesday, Nov. 14, 2018. Migrants in a caravan of Central …

Barricades with concertina wire block three lanes at the San Ysidro port of entry Wednesday, Nov. 14, 2018, as seen from Tijuana, Mexico. Migr…

Central American migrants listen to directions as they wait in line for a meal at a shelter in Tijuana, Mexico, Wednesday, Nov. 14, 2018. Migr…

Mexican authorities said 398 Central American migrants travelling in caravan, arrived in the border city of Tijuana on Wednesday. (Nov. 14)

Defense Secretary Jim Mattis and Homeland Security Secretary Kirstjen Nielsen are inspecting troops at the U.S.-Mexico border in Texas, even t…

Migrants traveling with a caravan hoping to reach the U.S. border, wait in line to board buses in La Concha, Mexico, Wednesday, Nov. 14, 2018.…

A man holds a flag near the border Wednesday, Nov. 14, 2018, seen from Tijuana, Mexico. Migrants in a caravan of Central Americans scrambled t…

A Central American migrant breastfeeds her son as they wait in line for a meal at a shelter, Wednesday, Nov. 14, 2018, in Tijuana, Mexico. Mig…

A Central American migrant sits on top of the border structure separating Mexico, left, and the United States, right, as U.S. Border Patrol ag…

Migrants traveling with a caravan hoping to reach the U.S. border, ride on the bed of a truck, on the highway between Mazatlan and Cualiacan, …