The Border Patrol's Rio Grande Valley Sector has seen a large spike in cases of rhabdomyolysis—severe dehydration and overexertion—among migrants this year. Border agents say smugglers are to blame for treating migrants like "cargo" and pushing them too hard.

The controversial "remain in Mexico" plan is becoming one of the Trump administration’s most successful strategies for keeping migrants from gaining entry into the U.S. Just ask the migrants released into cartel-weary Nuevo Laredo this week. Many are headed home.

The Trump administration on Monday issued its most far-reaching rule aimed at curbing asylum claims. But legal and immigration experts say it could be blocked for a number of reasons.

El Paso's backlogged immigration court recently halted programs designed to aid asylum seekers as they navigate a complicated legal system. "The confusion in the courtroom is palpable," says one advocate.

EL PASO—The number of people who were apprehended by or surrendered to federal immigration officials on the U.S.-Mexico border dipped by nearly 30% last month, the Department of Homeland Security announced Tuesday.

With Border Patrol facilities overwhelmed, San Antonio's hastily opened migrant center, housed in an old Quiznos, is seeing hundreds of migrants arriving daily, many without money or a place to go.