Border patrols

FILE - In this June 11, 2019, file photo, Scott Warren, center, speaks outside federal court, in Tucson, Ariz., after a mistrial was declared in the federal case against him. The second trial against Warren, a border activist accused of harboring immigrants in the country illegally, is set to start on Tuesday, Nov. 12, 2019. (AP Photo/Astrid Galvan, File)

Attorney Cristobal Galindo, second from left, speaks accompanied by Jesus Hernandez, left, and Maria Guereca, and attorney Marion Reilly in front of the Supreme Court, Tuesday, Nov. 12, 2019, in Washington, after oral arguments. The case involves U.S. border patrol agent Jesus Mesa, Jr., who fired at least two shots across the Mexican border, killing Sergio Adrian Hernandez Guereca, 15, who'd been playing in the concrete culvert between El Paso and Cuidad Juarez. (AP Photo/Alex Brandon)

In this photo taken Saturday, Nov. 9, 2019, Bosnian border police officers guard migrants after making the illegal crossing from Serbia by the Drina river, the natural border between Bosnia and Serbia, near eastern Bosnian town of Zvornik, Bosnia. Bosnian border police are warning they cannot contain migratory pressures along the country's eastern border with Serbia, warning the situation could easily escalate and put in danger the overall stability of their politically fragile nation. (AP Photo/Eldar Emric)

In this photo released on the official Facebook page of the Syrian Presidency, Syrian President Bashar Assad, left, speaks with Syrian troops during his visit to the strategic town of Habeet, in the northwestern province of Idlib, Syria, Tuesday, Oct. 22, 2019. On Tuesday, Assad called the Turkish President Recep Tayyip Erdogan a "thief" during his first visit to territory captured from Turkey-backed rebels in the northwestern province of Idlib. (Facebook page of the Syrian Presidency via AP)

Government contractors erect a section of Pentagon-funded border wall along the Colorado River, Tuesday, Sept. 10, 2019 in Yuma, Ariz. The 30-foot high wall replaces a five-mile section of Normandy barrier and post-n-beam fencing, shown at left, along the the International border that separates Mexico and the United States. Construction began as federal officials revealed a list of Defense Department projects to be cut to pay for President Donald Trump's wall. (AP Photo/Matt York)

Acting Commissioner of Customs and Border Protection Mark Morgan speaks at the White House in Washington, Monday, Sept. 9, 2019. (AP Photo/Carolyn Kaster)

FILE - In this Wednesday, April 24, 2019 file photo, a Guatemalan man poses for a photo with his young son at the new Casa del Refugiado in east El Paso, Texas. Behind him is a full-wall mural which reads Esperanza, or hope. A federal appeals court ruling will allow the Trump administration to begin rejecting asylum at some parts of the U.S.- Mexico border for migrants who arrived after transiting through a third country. (Mark Lambie/The El Paso Times via AP, File)

FILE - In this June 15, 2019, file photo, migrants cross the Rio Grande illegally to surrender to the American authorities on the U.S.-Mexico border between Ciudad Juarez and El Paso. El Paso has swiftly become one of the busiest corridors for illegal border crossings in the U.S. after years as one of the sleepiest. (AP Photo/Christian Torres, File)