The Supreme Court on Monday granted emergency relief to the Trump administration, clearing the way for the resumption of border wall and infrastructure construction in the Big Bend region of West Texas. The unsigned decision lifts a preliminary injunction issued by U.S. District Judge Kathleen Cardone, which had temporarily halted construction of a 30-foot barrier and associated patrol roads in the area. Justice Ketanji Brown Jackson noted her dissent, stating she would have denied the Justice Department's request for emergency relief.
The litigation centers on the government's use of waivers under a 1996 federal immigration law to bypass environmental and historical preservation requirements. The Department of Homeland Security, under secretaries Kristi Noem and subsequently Markwayne Mullin, issued three waivers for project areas in the Big Bend sector beginning in February. The plaintiffs, including an environmental nonprofit, a riverboat guide, and a religious organization, argue that the construction threatens an "irreplaceable landscape" that includes Big Bend National Park, Big Bend Ranch State Park, and nearly 200 miles of the Rio Grande Wild and Scenic River corridor.
What the Right Is Saying
The Trump administration argued that the lower court's injunction frustrated its ability to combat illegal border crossings and secure the nation's border. Solicitor General D. John Sauer warned the Supreme Court that halting construction would have "serious consequences," including the "disruption of the government's ability to secure a quarter of the southern border against cartel incursions, drug trafficking, and illegal entry." The administration characterized the delay as creating a "massive vulnerability in border protection" and causing "irreversible delays, costs, and operational harms."
In its decision, the Supreme Court noted that the lower court's order "impedes the Government from advancing its 'compelling interests' in border security and integrity." The administration has consistently framed the border wall as a cornerstone of its plan to tackle illegal immigration, a promise President Trump has maintained for more than a decade. The government argues that the Big Bend sector is an area of "high illegal entry" requiring additional barriers to prevent funneling illegal entry and trafficking into unsecured areas.
What the Left Is Saying
Critics of the project, including the environmental nonprofit and local plaintiffs involved in the lawsuit, argue that the construction causes irreversible harm to the ecosystem and public access. In their Supreme Court filing, the plaintiffs' lawyers stated, "Once habitat is destroyed, vegetation cleared, historic resources damaged, livelihoods and private property destroyed, and wilderness landscapes fragmented by roads, barriers, and associated infrastructure, no final judgment can restore the status quo." The plaintiffs contend that the waivers issued by DHS authorize massive projects that would "cleave through the Chihuahuan Desert" and sever public and wildlife access to iconic sections of the Rio Grande.
Additionally, local opposition has been vocal. Residents and business owners in the Big Bend area, along with some Republican and Democratic lawmakers, expressed concern after images of bulldozers arriving at Big Bend National Park circulated on social media in August. Customs and Border Protection Commissioner Rodney Scott previously announced a pause on construction inside the national park itself following this backlash, though the court's decision allows work to proceed on other infrastructure, such as patrol roads and vehicle-barrier systems, in the broader Big Bend sector.
What the Numbers Show
The Big Bend sector covers more than 500 miles of the southern border, accounting for over 25% of the U.S.-Mexico border. The government has cited data indicating that immigration officers apprehended more than 89,000 people attempting to cross into the U.S. illegally in that area between 2021 and 2025. However, the plaintiffs contested this characterization, noting in court filings that the Big Bend Sector ranks last for apprehensions compared to the other six sectors along the southern border. According to their data, annual apprehensions in the Big Bend Sector ranged between 0.3% and 2.2% of total border-wide apprehensions.
The proposed infrastructure includes a 30-foot bollard wall, more than 200 miles of patrol roads, and roughly 17 miles of a vehicle-barrier system, according to CBP. Construction on a 47-mile-long stretch of wall in Hudspeth County, which is part of the Big Bend region, began in September before the injunction was issued. The waivers invoked by DHS allow the secretary to waive legal requirements deemed necessary to ensure "expeditious" construction of barriers and roads near the southern border, bypassing standard compliance with federal environmental protection and historical preservation laws.
The Bottom Line
The Supreme Court's decision allows the Trump administration to proceed with construction while the underlying legal challenge over the scope of DHS's waiver authority continues in lower courts. The case highlights the tension between federal border security mandates and environmental preservation laws in sensitive wilderness areas. Judge Cardone's previous ruling found that the secretary of homeland security exceeded his authority in issuing the waivers, a determination the Supreme Court temporarily set aside by lifting the injunction. The outcome of the ongoing litigation will determine whether the 1996 immigration law permits such broad waivers in regions designated as national parks or wild and scenic rivers.