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 US Court of Appeals for the District of Columbia Circuit, in a 2-1 decision, sided with historic preservationists who sued to halt the construction. The court ruled that President Donald Trump does not have the unilateral authority to make such a fundamental change to the White House without congressional authorization. The ruling will be stayed for two weeks to allow the administration to appeal to the US Supreme Court.

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

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

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

Sources