In a 5-4 ruling Monday, the high court granted an emergency application from the Trump administration, blocking lower court orders that would have halted construction on a massive ballroom addition to the White House. The unsigned opinion from the conservative majority concluded that the preservation groups challenging the project likely lack legal standing to sue.
Chief Justice John Roberts broke with his fellow conservatives, joining Justices Sonia Sotomayor, Elena Kagan, and Ketanji Brown Jackson in dissent. Roberts argued that Congress never gave the president authority to undertake such a project.
“That construction is likely unlawful,” Roberts wrote. He pointed to congressional authority over the District of Columbia and federal property, noting that Congress has “explicitly prohibited the construction of any building or structure” on federal grounds in the District “without express authority of Congress.”
The majority was careful to limit the scope of their ruling.
“Today, we do not pass upon the legality of the government’s East Wing project. We conclude only that, based on the submissions before us, the government is likely to prevail in showing that the Trust lacks Article III standing to challenge the project in federal court and that the remaining stay factors favor relief,” the high court wrote.
The decision marks a rare instance of Roberts finding himself in dissent as the conservative wing moves forward without him.
“The White House is not just any building,” Roberts argued. “Today’s decision is no victory for the separation of powers.”
For the Trump administration, the ruling represents a significant victory. Solicitor General D. John Sauer had described the project in court filings as an “integrated military complex” that includes a secure ballroom space “vitally required by national security.” The administration has maintained that the White House needs additional security infrastructure to protect the president and other officials from potential attacks.
The National Trust for Historic Preservation brought the lawsuit against the administration. The group argued that Trump cannot unilaterally demolish portions of the White House and construct a 90,000-square-foot addition without congressional authorization and required reviews. They accused the administration of attempting to “outrun judicial review” by pushing construction forward as quickly as possible.
That accusation carries some weight when looking at the numbers. According to court filings, about $200 million in private donations has already been spent or committed to the project. Trump first announced the ballroom project after returning to the White House, describing it as a roughly $400 million undertaking financed primarily through private donations.
Roberts had issued an administrative stay on Aug. 21, temporarily blocking a federal district court’s injunction while the full Supreme Court considered the emergency request. That temporary measure has now given way to the full ruling allowing construction to proceed.
The split decision leaves significant legal questions unanswered. The majority explicitly declined to rule on whether the construction itself is lawful, focusing only on the preliminary question of standing. That means the underlying legal battle over presidential authority and congressional oversight could continue even as workers complete the project.
For now, the cranes keep moving and the ballroom keeps rising.






