Naser Zazai, 29, had planned to reunite with his mother and brother in the United States this week after fleeing Afghanistan, where he says he was threatened and attacked because his brother had once worked for the U.

Many remain determined to reach the U.S. through more dangerous means, riding freight trains, hiring smugglers and dodging authorities.

Mexico's President Sheinbaum says she will work with Trump on deportations, border issues and cartels, but laughs at his 'Gulf of America' order.