On Friday, August 7th, 2026, a federal appeals court ordered the Trump administration to stop construction of a $400 million ballroom at the White House. The project involves building an 8,400-square-metre ballroom on the site where the White House’s East Wing once stood before its demolition.

The three-judge panel from the US Court of Appeals for the District of Columbia Circuit ruled in a 2-1 decision siding with historic preservationists who had sued to halt the project. The court stated that President Donald Trump does not have the unilateral authority to make such a significant structural change without congressional authorization, as required by the Constitution and laws.

The National Trust for Historic Preservation had filed the lawsuit in December 2025, shortly after the East Wing was demolished to make way for the ballroom, which Trump claimed would accommodate 999 people.

Trump responded on social media, calling the ruling “unjust” and announced plans to appeal to the US Supreme Court. He also wrote that the Military and Secret Service view the ruling as a national security threat, emphasizing that the complex is intended to protect the country and future presidents.

Government lawyers have argued that the ballroom project, the largest structural change to the White House in over 70 years, incorporates critical security features designed to defend against threats such as drones, ballistic missiles, and biohazards.

The appeals court has stayed its ruling for two weeks to allow the administration time to appeal to the US Supreme Court.

Sources