The latest: High court lifts federal judge's freeze on Big Bend construction
November 9, 2026.
The Supreme Court granted an emergency request from the Trump administration on Monday, clearing federal contractors to resume border barrier, patrol road, and surveillance tower construction across the rugged Big Bend region of West Texas.
In an 8–1 unsigned order, the justices stayed a preliminary injunction issued last month by U.S. District Judge Kathleen Cardone of El Paso. Judge Cardone had halted work along dozens of miles of the Rio Grande borderlands, ruling that environmental organizations and local river outfitters demonstrated credible threats of irreparable ecological damage to fragile desert canyons and endangered wildlife habitats.
Justice Ketanji Brown Jackson was the sole dissenter from Monday’s decision, noting her dissent without issuing a separate written opinion. The ruling enables the Department of Homeland Security (DHS) and U.S. Customs and Border Protection to immediately mobilize heavy machinery while litigation proceeds through the U.S. Court of Appeals for the Fifth Circuit.
DHS environmental waivers and the 1996 immigration statute
Central to the Supreme Court's order is Section 102(c) of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 (IIRIRA). Under the statute, Congress granted the Secretary of Homeland Security broad authority to waive "all legal requirements" determined necessary to ensure the expeditious construction of physical barriers and roads along the international border.
In its emergency application to the high court, the Justice Department argued that Congress established a clear, binding preference for national security and border infrastructure over statutory compliance under the National Environmental Policy Act (NEPA), the Endangered Species Act, and the Clean Water Act. The Supreme Court majority concurred that the lower court erred in balancing local aesthetic and recreational interests against federal border security priorities.
"The statutory scheme reflects a clear congressional choice to prioritize the swift installation of border barriers," the order indicated, leaving environmental plaintiffs with narrow avenues to block construction once federal waivers are formally published in the Federal Register.
Conservationists warn of irreversible harm to Rio Grande river habitats
The Big Bend borderlands—encompassing Brewster and Presidio counties, Big Bend National Park, and adjacent state protected areas—represent one of North America's most ecologically diverse and intact desert river ecosystems. Conservation advocates warn that heavy industrial excavation, hillside blasting, and towering steel bollard fencing will sever vital migratory corridors for black bears, ocelots, bighorn sheep, and yellow-billed cuckoos.
Attorneys representing Earthjustice, the Center for Biological Diversity, and the Sierra Club condemned the Supreme Court's emergency intervention, arguing that physical construction will irreparably alter public lands before a trial court can rule on the merits of the statutory waivers.
"Blasting canyons and bulldozing floodplains along the wild Rio Grande will cause permanent scars that cannot be erased if the courts later find these waivers unconstitutional," conservation advocates said in a joint response. "These pristine desert canyons have natural topographical barriers that make heavy bollard walls both destructive and senseless."
Pending appeals and upcoming legal tests in the Fifth Circuit
While federal bulldozers may resume site clearing, the underlying constitutional and statutory challenges remain unresolved:
- Merits appeal: The U.S. Court of Appeals for the Fifth Circuit in New Orleans is scheduled to hear oral arguments in early 2027 regarding whether DHS exceeded statutory authority under the 1996 immigration act.
- Contract awards and land condemnation: Federal authorities face pending eminent domain proceedings with private ranchers and riverfront parcel owners whose deeds border state and federal parklands.
- Erosion and flood hazards: Hydrological assessments by the International Boundary and Water Commission (IBWC) remain incomplete regarding whether bollard barriers could deflect floodwaters during seasonal desert cloudbursts.
