Loading Video…
This browser does not support the Video element.
WASHINGTON - A federal judge who halted construction of President Donald Trump’s $400 million White House ballroom clarified Thursday that the administration may continue below‑ground work tied to national security at the site.
RELATED: Trump's White House ballroom wins approval from planning commission
What we know:
U.S. District Judge Richard Leon issued the updated ruling several days after an appeals court directed him to reconsider the national security implications of stopping construction.
Government lawyers argued the project includes critical security features designed to guard against threats such as drones, ballistic missiles and biohazards.
Leon had previously barred work from moving forward without congressional approval but suspended enforcement of that order for two weeks. The appeals court extended the stay until Friday.
READ MORE: Trump says military building 'massive complex' beneath new White House ballroom
In his clarification, Leon said only above‑ground construction of the ballroom must stop, except for work needed to cover or secure the area.
He said the administration may continue excavations and construction of bunkers, military installations and medical facilities beneath the ballroom.
"Defendants argue that the entire ballroom construction project, from tip to tail, falls within the safety-and-security exception and therefore may proceed unabated," the judge wrote. "That is neither a reasonable nor a correct reading of my Order!"
Rendering of the new White House ballroom shared by President Donald Trump on Truth Social on March 5, 2026. (Donald J. Trump / @realDonaldTrump) WASHINGTON, DC - UNITED STATES - APRIL 01: A US federal judge blocks the construction of a White House ballroom project associated with President Donald Trump in Washington, DC, United States on April 01, 2026. (Photo by Celal Gunes/Anadolu via Getty Images) Rendering of the new White House ballroom shared by President Donald Trump on Truth Social on March 5, 2026. (Donald J. Trump / @realDonaldTrump) Rendering of the new White House ballroom shared by President Donald Trump on Truth Social on March 5, 2026. (Donald J. Trump / @realDonaldTrump) WASHINGTON, DC - OCTOBER 28: An excavator sits on the rubble after the East Wing of the White House was demolished on October 28, 2025 in Washington, DC. The demolition is part of U.S. President Donald Trump's plan to build a ballroom on the eastern side of the White House. (Photo by Alex Wong/Getty Images) View from Northeast | The White House State Ballroom Renderings (The White House) View from East | The White House State Ballroom Renderings (The White House) Interior View Looking West | The White House State Ballroom Renderings (The White House) Interior View Looking Southwest | The White House State Ballroom Renderings (The White House) Interior View Looking South | The White House State Ballroom Renderings (The White House) Interior View from South Lawn | The White House State Ballroom Renderings (The White House) Exterior View of Northeast Portico | The White House State Ballroom Renderings (The White House) Exterior View from Southwest | The White House State Ballroom Renderings (The White House) Exterior View from Southeast | The White House State Ballroom Renderings (The White House) Exterior View from Northeast | The White House State Ballroom Renderings (The White House) Exterior View from East Colonnade Roof Terrace | The White House State Ballroom Renderings (The White House) White House demolition begins on East Wing to make way for Trump’s $250 million ballroom The Source: Information in this article comes from the Associated Press.