In brief
In a 5‑4 decision, the Supreme Court upheld the Trump administration’s emergency request, permitting the construction of an above‑ground ballroom on White House grounds. The ruling nullified lower‑court orders that had sought to halt the project, which the National Trust for Historic Preservation argues would cause irreversible damage to a historic landmark. Trump demolished the historic East Wing in autumn to begin the build, while the Court asserted the administration would suffer irreparable harm if construction were stopped. The Court’s decision reflects a judicial divide over whether the presidency can unilaterally build on federal grounds without congressional approval.
Construction continues on a new helipad on the South Lawn of the White House and the East Wing ballroom on 24 August 2026 in Washington DC.
In a 5‑4 ruling, the Supreme Court cleared the path for President Donald Trump to start building a $400 million ballroom at the White House. The high court granted the Trump administration’s emergency request, blocking lower‑court rulings that would have halted construction of the project’s above‑ground portion.
The National Trust for Historic Preservation had challenged the administration’s unilateral authority, arguing that Congress has not given permission for new structures on federal capital grounds. Trump had demolished the historic East Wing last autumn to make way for the ballroom.
Justice John Roberts issued a stay that let the project move forward while the Court considered the lawsuit. He and three dissenting justices noted that construction was likely unlawful because Congress had explicitly prohibited building on federal grounds without express authority.
In a concise order, the five justices who supported construction argued that the administration would suffer irreparable harm if the stay were lifted and that the balance of equities favored the executive branch. They wrote that the government is likely to prevail by showing the Trust lacks standing to challenge the project.
Trump maintains that expanding the White House’s event space is essential for meetings and for security. The National Trust contends that the construction will cause irreversible damage to a national historic landmark.
