National Trust for Historic Preservation v. NPS
Case Overview
The government appealed Judge Leon's order clarifying the scope of his preliminary injunction halting construction of the White House ballroom. On August 7, 2026, the D.C. Circuit affirmed the modified injunction and vacated its own April 17 administrative stay, staying the ruling fourteen days for possible Supreme Court review.
The Application
Judge Leon determined that the National Trust satisfied the preliminary injunction standard and issued an order halting the ballroom construction. Leon later clarified the scope of that injunction, which the government now contests, arguing either that the historic preservation injury is not irreparable or that the injunction's scope exceeds what the facts support.
The Conclusion
The D.C. Circuit is reviewing whether Judge Leon properly scoped the preliminary injunction to redress valid historic preservation concerns or whether the injunction was overbroad or improvident.
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