US Supreme Court lifts block on border wall work in Big Bend

The US Supreme Court has allowed the administration to proceed with border wall construction in a remote part of Big Bend National Park while litigation continues. The court granted an emergency request to lift a lower-court injunction that had halted the work. The decision concerns whether construction can go ahead during the case, rather than a final judgment on every issue raised by opponents.

The administration argued that the injunction impeded its border-security interests and that a district judge lacked jurisdiction over the challenge. The Supreme Court said the government was highly likely to succeed on that jurisdictional argument under federal immigration legislation that limits the claims lower courts may hear against border-barrier waivers.

The lawsuit challenged the use of waivers to set aside environmental protections. The court rejected the challengers' attempt to frame their major-questions argument as a constitutional claim within the statute's exception. That legal reasoning is distinct from a finding that the project would have no environmental consequences.

Conservation groups, local officials and some Republicans oppose expansion through the park. Critics say a wall could disrupt an ecologically and culturally important landscape that includes habitat for threatened wildlife. The administration describes the project as a national-security and immigration-control priority.

The district court had questioned the government's description of Big Bend as an area of high illegal entry, citing its relatively small share of migrant apprehensions despite its long stretch of border. Those objections remain part of the dispute's background. The immediate practical effect of the Supreme Court's order is to remove the construction block while the underlying litigation proceeds.