Donald Trump has petitioned the Supreme Court to keep construction underway on a $400 million ballroom at the White House.
The move follows a recent appellate court decree that halts work until Congress formally approves the project—a ruling upheld after a lawsuit by the National Trust for Historic Preservation, which argued the administration bypassed mandatory review.
The Solicitor General, John Sauer, argues that stopping work now would be “dangerous,” citing 65 % completion and the threats of “construction‑by‑injunction.”
Trump insists the ballroom is essential for hosting large gatherings and bolstering national security, adding it will be funded through private donations and thus not require congressional consent.
If the Supreme Court denies the emergency application, construction must cease on 21 August, potentially undoing 80 % of the progress already made.
The case is part of a broader stretch of Trump‑era projects, from renovating the Lincoln Memorial Reflecting Pool to plans for a “Arc de Trump,” that critics say skirt the required approval process.
