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EL PASO, TEXAS - FEBRUARY 01: A U.S. Border Patrol agent speaks with Central American immigrants at the U.S.-Mexico border fence on February 01, 2019 in El Paso, Texas. The migrants were taken into custody, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

EL PASO, TEXAS - FEBRUARY 01:  A U.S. Border Patrol agent speaks with Central American immigrants at the U.S.-Mexico border fence on February 01, 2019 in El Paso, Texas. The migrants were taken into custody, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

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EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk between a newly built Bollard-style border fence, left, and the older "legacy" fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk between a newly built Bollard-style border fence, left, and the older "legacy" fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

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EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk between a Bollard-style border fence, left, and the older "legacy" fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk between a Bollard-style border fence, left, and the older "legacy" fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

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EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk between a newly built Bollard-style border fence, left, and the older "legacy" fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk between a newly built Bollard-style border fence, left, and the older "legacy" fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

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EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk along the border fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)

EL PASO, TEXAS - FEBRUARY 01: Central American immigrants walk along the border fence after crossing the Rio Grande from Mexico on February 01, 2019 in El Paso, Texas. The migrants later turned themselves in to U.S. Border Patrol agents, seeking political asylum in the United States. (Photo by John Moore/Getty Images)