But the Supreme Court has now intervened, delivering a significant victory to Trump’s border security agenda.
And the reasoning behind the justices’ decision could have consequences well beyond this particular stretch of the Texas border.
A Familiar Legal Strategy Meets Another Supreme Court Roadblock
The latest confrontation follows years of legal battles over Trump’s efforts to construct physical barriers along the U.S.-Mexico border.
During his first administration, the president repeatedly encountered lawsuits from environmental organizations and other opponents seeking to stop construction through federal court orders.
One prominent example involved California-based District Judge Haywood Gilliam, who blocked the Trump administration from redirecting billions in military funding toward border wall construction.
The Supreme Court subsequently intervened in that dispute, allowing the administration to proceed.
Now, a similar confrontation has unfolded in Texas.
This time, the dispute concerns the Big Bend Sector, which encompasses approximately 517 miles of the U.S.-Mexico border.
Judge Cardone issued her preliminary injunction on October 2, halting the administration’s construction activities after concluding that the plaintiffs were likely to succeed in challenging the government’s use of environmental waivers.
Her October 14 written opinion focused on whether DHS had sufficient congressional authorization to invoke its sweeping waiver powers in a region with comparatively low migrant apprehension numbers.
The Trump administration refused to accept the ruling and took its fight directly to the Supreme Court.
The Legal Argument That Failed to Stop Construction
The central legal issue involved the so-called major questions doctrine.
This principle generally requires clear congressional authorization when federal agencies undertake actions involving significant economic or political consequences.
The challengers argued that DHS could not simply designate the entire Big Bend Sector as an area of high illegal entry and use that determination to bypass numerous environmental and conservation requirements.
Their argument pointed to the region’s relatively low apprehension numbers compared with other parts of the southern border.
However, the Supreme Court’s unsigned opinion focused on a different problem with their legal challenge.
Under Section 102 of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996, Congress granted the Homeland Security secretary broad authority to waive legal requirements when necessary to accelerate border barrier construction.
Crucially, the statute also sharply restricts judicial review of those waiver decisions, allowing lawsuits only when plaintiffs allege violations of the U.S. Constitution.
The justices concluded that the challengers’ major-questions argument was essentially a dispute over the secretary’s statutory authority rather than a genuine constitutional claim.
That distinction proved decisive.
The Court explained that the government was likely to establish that the lower court lacked jurisdiction to consider the challengers’ claims.
In its opinion, the justices also emphasized that the government’s interest in proceeding with construction outweighed the aesthetic, recreational, and environmental injuries alleged by the plaintiffs.
Justice Ketanji Brown Jackson was the lone dissenter. She indicated that she would have denied the administration’s request for emergency relief but did not provide a written explanation.
Importantly, the ruling does not resolve the underlying lawsuit. It places Cardone’s injunction on hold while the administration pursues further Supreme Court review.
The Border Security Numbers Behind Trump’s Decision
The Trump administration has maintained that the Big Bend region should not be dismissed as insignificant simply because its apprehension figures are lower than those of other border sectors.
Government figures cited in the administration’s official determination paint a substantial picture of illegal border activity.
Between fiscal years 2021 and 2025, Border Patrol agents apprehended more than 89,000 individuals attempting to enter the United States illegally in the Big Bend Sector.
During that same period, agents seized more than 87,574 pounds of marijuana, over 1,156 pounds of methamphetamine, more than 867 pounds of cocaine, and over 94 pounds of fentanyl.
Those figures provide the administration with an argument that the region presents legitimate border enforcement concerns, regardless of how its apprehension totals compare with busier areas.
CBP Commissioner Rodney Scott has also warned about the dangers of leaving vulnerable stretches of the border without adequate physical barriers as construction advances elsewhere.
“I am 100% convinced it will be completely overrun and destroyed.”
The administration’s concern is that isolated sections left without sufficient defenses could become increasingly attractive routes for criminal organizations seeking alternative crossing points.
Billions in Border Funding, But Legal Battles Continue
Congress has provided the Trump administration with substantial financial resources for border security.
The One Big Beautiful Bill Act, signed into law in July 2025, included approximately $46.5 billion for border infrastructure and wall systems.
That funding gives DHS considerable resources to pursue the president’s border security priorities.
The administration has also relied on Section 102 waiver authority to bypass numerous environmental and other legal requirements that could otherwise delay construction.
These provisions were designed to prevent lengthy regulatory disputes from indefinitely obstructing border barrier projects.
The Big Bend lawsuit, however, demonstrates that significant legal challenges remain.
The administration argued that the injunction was costing taxpayers approximately $500,000 per day in construction delays, making the Supreme Court’s intervention particularly important from its perspective.
With the injunction now stayed, the government can resume covered construction activities while the litigation proceeds.
A Significant Victory, But the Fight Is Not Over
Monday’s decision represents an important development for Trump’s border wall ambitions.
Environmental organizations and local opponents have argued that the project threatens the region’s distinctive landscape, wildlife, recreational areas, and historic sites.
Some local politicians have also questioned whether extensive physical barriers are necessary in such a remote section of the border.
The administration, meanwhile, maintains that securing vulnerable areas is essential to preventing illegal crossings and disrupting drug-smuggling operations.
The Supreme Court’s decision does not settle that broader policy debate. Nor does it permanently resolve whether every aspect of DHS’s waiver decisions will survive judicial scrutiny.
What it does establish, at this stage, is that challengers cannot simply repackage an ordinary statutory dispute as a constitutional claim to bypass Congress’s restrictions on judicial review.
For Trump, that is a consequential legal victory.
His administration has made border security a central priority, and the latest ruling removes an immediate judicial obstacle to construction in one of the most closely watched sections of the Texas border.
After years of legal confrontations over the border wall, the president has once again secured the Supreme Court’s backing for his administration’s effort to keep construction moving.
The legal fight is far from finished, but for now, the Big Bend project has the green light to proceed.
