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protest the plans by US President Donald Trump's administration to build a section of the border wall
A woman hold's a sign to protest the plans by US President Donald Trump's administration to build a section of the border wall at the Big Bend National Park in Study Butte, Texas, on August 15, 2026.
(Photo by Ronaldo Schemidt/AFP via Getty Images)

'Horrific': Supreme Court OKs Trump’s Border Wall Construction in Big Bend

"The damage done to Big Bend will be felt for future generations of Texans and Americans," one advocate said, "and this administration will bear responsibility for the natural heritage we lose.”

The US Supreme Court on Monday lifted a court order that had halted construction of a barrier wall and roads across Big Bend National Park and the surrounding region, but advocates warned that the "firestorm of outrage" unleashed by the Trump administration waiving of dozens of environmental laws to build the wall would only intensify.

In an 8-1 vote, with Democratic appointee Justice Ketanji Brown Jackson dissenting, the high court lifted an injunction that had been issued October 2 by US District Judge Kathleen Cardone, a Republican appointee in the Western District of Texas.

Cardone handed down the injunction after the Center for Biological Diversity (CBD), Friends of the Ruidosa Church, and a Big Bend-area river guide and landowner filed a lawsuit challenging the administration's decision to waive laws including the Endangered Species Act, the National Wild and Scenic Rivers Act, and the National Park Service Organic Act, arguing that such waivers violate the major questions doctrine, which requires congressional approval for actions with major economic and political consequences.

The majority ruled that construction can continue as the lower court considers its legality, finding that Homeland Security Secretary Markwayne Mullin is permitted by the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 to waive environmental laws and has “broad authority to construct border barriers and roads."

In August, despite a separate coalition's lawsuit, bulldozers appeared at Big Bend and began leveling part of the national park before the October ruling halted construction.

Laiken Jordahl, national public lands advocate at the Center for Biological Diversity, told The New York Times he was "completely devastated" by the ruling.

Customs and Border Protection has indicated the agency plans to build vehicle barriers and patrol roads across the national park, including in the remote Mariscal Mountain region, which would require "extensive dynamite blasting," according to CBD.

“The Trump administration and its contractors are hell-bent on destroying one of America’s greatest national parks, and the Supreme Court just gave them the green light,” Jordahl said in a statement. “This horrific decision clears the way for contractors to bulldoze pristine desert and dynamite canyon walls before the courts have even decided whether this destruction is legal. They’re signing off on the permanent destruction of the wildest place in Texas, and the theft of a great American river from all of us.”

Sierra Club also expressed outrage, and US Rep. Greg Casar (D-Texas) said the decision would only "destroy the nature and wildlife that we love at Big Bend."

"The corrupt and far-right Supreme Court just gave [President Donald] Trump the OK to rip up Big Bend with a border wall. No one will be safer or freer," said Casar. "Democrats, Republicans, Texans of all backgrounds all agree: Leave Big Bend alone."

Jordahl emphasized that the court had ruled in favor of the Trump administration less than a week after two Texas Democrats, Sen.-elect James Talarico and Gov.-elect Gina Hinojosa, stunned the Republican Party with their electoral victories in the longtime GOP stronghold.

Texans “roundly rejected the destruction of this national park and border wall destruction at large," Jordahl told the Times, adding that Mullin's agency “would be wise to listen to Texans and pump the brakes on this project.”

In a statement, he warned that "Americans care deeply about this extraordinary national park and they won’t stand by quietly if its irreplaceable landscapes are butchered and paved over."

"The damage done to Big Bend will be felt for future generations of Texans and Americans," he said, "and this administration will bear responsibility for the natural heritage we lose.”

Hillary Pierce, director of communications for the group No Big Bend Wall, which also sued the administration in September, noted that officials haven't "answered why the government is building a wall in one of the least-crossed stretches of the southern border."

“Once the bulldozers cut through a canyon or a family's ranch gets walled off from the Rio Grande, there's no undoing it," said Pierce. "This isn't the end of our fight. The justices didn't decide whether Big Bend actually qualifies as an area of high illegal entry. That matters because the administration used that designation to justify building the wall and bypassing environmental protections. The government's own numbers show Big Bend has the fewest Border Patrol apprehensions along the southern border. That's exactly what we're challenging in our lawsuit in Washington.”

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