Border patrols

FILE - In this May 15, 2019, file photo, acting U.S. Customs and Border Protection Commissioner John Sanders, left, joins Senate Judiciary Committee Chairman Lindsey Graham, R-S.C., right, on Capitol Hill in Washington. Sanders says he's stepping down amid outrage over his agency's treatment of detained migrant children and said in a message to CBP employees Tuesday that he would resign on July 5. (AP Photo/J. Scott Applewhite)

Protesters gather to demand the defunding of government agencies for border protection and customs enforcement, Tuesday, June 25, 2019, on Capitol Hill in Washington. (AP Photo/Patrick Semansky)

FILE - This June 20, 2019, file frame from video shows the entrance of a Border Patrol station in Clint, Texas. U.S. government officials say they've moved more than 100 kids back to the remote border facility where lawyers reported detained children were caring for each other and had inadequate food, water, and sanitation. An official from U.S. Customs and Border Protection said Tuesday, June 25, 2019 that the "majority" of the roughly 300 children detained at Clint, Texas, last week have been placed in facilities operated by the Office of Refugee Resettlement. (AP Photo/Cedar Attanasio, File)

This June 20, 2019, frame from video shows the entrance of a Border Patrol station in Clint, Texas. A legal team, that interviewed about 60 children at the station near El Paso, says young migrants being held there are experiencing neglect and mistreatment at the hands of the U.S. government. (AP Photo/Cedar Attanasio)

FILE - In this Wednesday, May 22, 2019 file photo migrants mainly from Central America guide their children through the entrance of a World War II-era bomber hanger in Deming, N.M. A panel of appeals court judges in California will hear arguments in the long-running battle between advocates for immigrant children and the U.S. government over conditions in detention and holding facilities near the southwest border. (AP Photo/Cedar Attanasio, File)

FILE - In this Wednesday, May 22, 2019 file photo migrants mainly from Central America guide their children through the entrance of a World War II-era bomber hanger in Deming, N.M. A panel of appeals court judges in California will hear arguments in the long-running battle between advocates for immigrant children and the U.S. government over conditions in detention and holding facilities near the southwest border. (AP Photo/Cedar Attanasio, File)

FILE - In this June 18, 2019 file photo, migrants arriving from Guatemala disembark from a raft in Ciudad Hidalgo, Mexico. Guatemala's office of the presidency said in a Sunday, July 14, 2019 statement that a meeting between Guatemala's President Jimmy Morales and U.S. President Donald Trump would be rescheduled due to legal appeals aimed at preventing Morales from acceding to Trump's requests to allow migrants, including non-Guatemalans, to remain in Guatemala while they apply for U.S. asylum instead of waiting at the Mexico-U.S. border. (AP Photo/Rebecca Blackwell, File)

FILE - In this Saturday, June 23, 2018, file photo, a U.S. Border Patrol Agent walks between vehicles outside the Central Processing Center in McAllen, Texas. Advocates were shocked to find an underage mom and her tiny, premature newborn daughter huddled in a Border Patrol facility the second week of June 2019, in what they say was another example of the poor treatment immigrant families receive after crossing the border. The mother is a Guatemalan teen who crossed the border without a parent and was held at a facility in McAllen, Texas, with other families with children. (AP Photo/David J. Phillip, File)

FILE - In this Saturday, June 23, 2018, file photo, a U.S. Border Patrol Agent walks between vehicles outside the Central Processing Center in McAllen, Texas. Advocates were shocked to find an underage mom and her tiny, premature newborn daughter huddled in a Border Patrol facility the second week of June 2019, in what they say was another example of the poor treatment immigrant families receive after crossing the border. The mother is a Guatemalan teen who crossed the border without a parent and was held at a facility in McAllen, Texas, with other families with children. (AP Photo/David J. Phillip, File)

In this June 1, 2019, photo, provided by New Mexico State University professor Neal Rosendorf, migrants are seen through fencing inside a temporary outdoor encampment where they’re waiting to be processed in El Paso, Texas. Rosendorf said it resembled a “human dog pound.” (Neal Rosendorf via AP)