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Federal Judge Clears Path for 62 Miles of Arizona Border Wall on Tribal Land

Nathan Kline
Nathan Kline •

A federal judge denied the Tohono O'odham Nation's bid to block construction, clearing the way for 62 miles of border wall along the Arizona-Mexico border.

Federal Judge Clears Path for 62 Miles of Arizona Border Wall on Tribal Land

A federal judge has cleared the way for the Trump administration to build 62 miles of border wall along the Arizona-Mexico border, rejecting a Native American tribe's emergency bid to stop construction. Senior U.S. District Judge Richard Leon denied the Tohono O'odham Nation's request for a preliminary injunction on Friday, handing border security a major legal victory. The ruling allows work to move forward on a stretch of the southern border that has long been a priority for the administration.

Judge Leon, a George W. Bush appointee, ruled that the tribe was unlikely to succeed on the merits of its claims that the wall would illegally alter reservation boundaries or amount to trespassing on tribal land. His 18-page opinion leaned on a 1907 proclamation by President Theodore Roosevelt that placed all public land within 60 feet of the international boundary under exclusive federal control.

A Legal Roadblock Removed

The Tohono O'odham Nation had argued that construction along its 2.8-million-acre reservation would effectively shrink tribal land without congressional approval and let federal contractors trespass on the reservation. The tribe sought an emergency halt while the case plays out.

Judge Leon was not persuaded. He noted that the Roosevelt Reservation was established in 1907, before the tribe's reservation was created, and that building a wall on the existing international border does not change the Nation's boundaries. As a legal matter, he wrote, Congress holds exclusive authority to diminish reservation boundaries, and no court has held that constructing a border wall adjacent to a reservation necessarily diminishes its boundaries.

National Security Takes Priority

The judge also rejected the tribe's trespass argument, citing the federal government's sovereign immunity, and concluded that the government's interests outweigh the harms alleged by the tribe at this stage of the litigation.

"Given the national security and foreign policy considerations related to the border wall, deference to the government is warranted," Leon wrote. He added that the government's interests in securing the border, enforcing immigration laws, and ensuring public safety outweigh any surviving irreparable harms.

The ruling comes as the administration celebrates a historic stretch of border enforcement. Last week, the White House touted 15 consecutive months of zero border releases at the U.S.-Mexico border, a record that has reshaped the debate over immigration policy.

What Happens Next

While the ruling is a significant win for the administration, the legal fight is not over. The Tohono O'odham Nation can continue pursuing its case on the merits, and Judge Leon made clear he expects the government to follow through on its guarantees of consultation and cooperation with the tribe as construction moves forward.

For now, the decision removes a key obstacle to closing one of the most active smuggling corridors on the southern border. The 62-mile stretch through the Tohono O'odham reservation has been a focal point for Border Patrol for years, and the green light from the courts means construction crews can proceed without waiting on the outcome of the broader litigation.

The administration has made finishing the border wall a centerpiece of its second term, and this ruling keeps that momentum intact. With the legal path now clear and border numbers at historic lows, the focus shifts to getting shovels in the ground and keeping the pressure on.