Central American migrants, part of the Central American caravan trying to reach the United States, continue their journey as they leave Mexicali, Mexico, Tuesday, Nov. 20, 2018. Tensions have built as nearly 3,000 migrants from the caravan poured into Tijuana in recent days after more than a month on the road, and with many more months likely ahead of them while they seek asylum in the U.S. (AP Photo/Rodrigo Abd), APTOPIX