It's no wonder they're coming, Joe Biden told them to:
TAPACHULA, Mexico (Reuters) - Some 2,000 migrants and asylum seekers departed the southern Mexican city of Tapachula near the Guatemalan border overnight on Sunday in the latest in a series of caravans setting out for the United States.
By Monday morning, the caravan had advanced about 25 kilometers (15 mi) to reach the town of Huehuetan, according to a Reuters witness.