Asylum seekers walk near a train station while they try heading to the U.S. travelling on a train after thousands of migrants crossed into the United States in recent days, in El Carmen, Mexico September 21, 2023. REUTERS/Daniel Becerril

Migrants, mostly from Venezuela, prepare to cross the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez

Migrants sit near the border wall after crossing the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez

Migrants sleep in the early morning between the primary and secondary border fences between Mexico and the United States as they await processing by U.S immigration in San Diego, California, U.S., September 20, 2023. REUTERS/Mike Blake

Migrants travel on a train with the intention of reaching the United States, in Ciudad Juarez, Mexico September 20, 2023. REUTERS/Jose Luis Gonzalez

Adeline, a 10 year old migrant from Guatemala, sleeps on her mother's lap as they surrender to border patrol agents after crossing into United States from Mexico in Roma Creek, Texas, U.S. September 20, 2023. REUTERS/Adrees Latif TPX IMAGES OF THE DAY

Migrants mostly from Venezuela, seeking asylum in the United States, try to cross a razor wire fence deployed to inhibit the crossing of migrants into the United States, on the banks of the Rio Bravo River the border between the U.S. and Mexico, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez


Migrants, mostly from Venezuela, cross the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez

Migrants travel on a train with the intention of reaching the United States, in Ciudad Juarez, Mexico September 20, 2023. REUTERS/Jose Luis Gonzalez

A shoe is seen as migrants, mostly from Venezuela, (not pictured) cross the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez

A border patrol agent photographs Omar Anthony, a youth migrant traveling without an adult, after he surrendered to border patrol agents after crossing into United States from Mexico in Roma Creek, Texas, U.S. September 20, 2023. REUTERS/Adrees Latif

Asylum seekers heading to the U.S. travel on a train after thousands of migrants crossed into the United States in recent days, in El Carmen, Mexico September 21, 2023. REUTERS/Daniel Becerril

Asylum seekers heading to the U.S. travel on a train after thousands of migrants crossed into the United States in recent days, in El Carmen, Mexico September 21, 2023. REUTERS/Daniel Becerril

Migrants travel on a train with the intention of reaching the United States, in Aguascalientes, Mexico, September 20, 2023. REUTERS/Liberto Urena

A migrant from Venezuela waits to board a train to try to reach the U.S. border as he travels through the state of Coahuila, in Ramos Arizpe, Mexico September 20, 2023. REUTERS/Daniel Becerril

A migrant crosses the Rio Bravo river with the intention of turning himself in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez

A girl reacts as she waits for her family to cross a razor wire fence, as migrants, mostly from Venezuela, cross the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez

Migrants travel on a train with the intention of reaching the United States, in Aguascalientes, Mexico, September 20, 2023. REUTERS/Liberto Urena

Asylum seekers heading to the U.S. travel on a train after thousands of migrants crossed into the United States in recent days, in El Carmen, Mexico September 21, 2023. REUTERS/Daniel Becerril

Migrants, mostly from Venezuela, gather near the border wall after crossing the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico September 21, 2023. REUTERS/Jose Luis Gonzalez