Escalation: National Trust petitions Supreme Court to pause construction

On Aug. 18, the National Trust for Historic Preservation asked the Supreme Court to pause construction of the $400 million, 90,000‑square‑foot White House ballroom while the litigation runs. It urged the Court to let a lower court’s order take effect on Aug. 21 halting above‑ground work unless Congress authorizes the project, while allowing underground security construction to continue. The filing argues no statute gives the president authority to erect a new structure on federal grounds in Washington without express approval from Congress.

The group warned that continued building would likely make the project irreversible. It pointed to the administration’s own descriptions of an integrated military complex and use of blast‑resistant materials as signs that later removal or alteration would be impracticable. It also said construction has been accelerated during the appeals, with the project now roughly 65% complete after demolition of the East Wing and plans for a venue sized to seat about 1,000 guests.

The administration’s emergency appeal asks the justices to keep the entire project moving, arguing national security demands uninterrupted completion and that the above‑ground ballroom is inextricably tied to a five‑story bunker beneath. It also challenges the preservation group’s standing to sue, an issue that split the D.C. Circuit in a 2‑1 decision. With the appellate injunction scheduled to kick in Friday, the Court faces a compressed window to decide whether above‑ground work can continue.

AI-synthesized from multiple reported sources