FILE - Venezuelan migrants wave a U.S. flag at a television helicopter that flew over the Rio Grande, in Matamoros, Mexico, on May 12, 2023, a day after pandemic-related asylum restrictions called Title 42 were lifted. President Joe Biden has ordered a halt to asylum processing at the U.S. border with Mexico when arrests for illegal entry top 2,500 a day, which was triggered immediately. (AP Photo/Fernando Llano, File)