U.S. District Judge Richard Leon ordered the Trump administration on Thursday to halt all above-ground construction on the planned White House ballroom, ruling that national security concerns do not give the executive branch a "blank check" to bypass congressional authorization for the $400 million project. The amended order sharpens a legal standoff that has bounced between the trial court and the D.C. Circuit for months, and leaves the ballroom's future squarely in Congress's hands.

Leon, a George W. Bush appointee, issued the clarification after the U.S. Court of Appeals for the D.C. Circuit sent the case back to him last week with instructions to spell out exactly what his March preliminary injunction permits and prohibits. A three-member panel had voted 2-1 to grant the administration a temporary stay while the scope of the injunction was sorted out.

The judge's answer was blunt. Above-ground ballroom work stops. Below-ground construction tied to national security, bunkers, military installations, medical facilities, may continue. And the administration may take whatever steps are necessary to physically secure the construction site and protect the president and his staff.

Leon rebukes Justice Department's reading of his order

At the heart of Thursday's dispute is how broadly the administration interpreted the safety-and-security exception Leon built into his original March injunction. Government lawyers argued that the entire 90,000-square-foot project, top to bottom, qualifies as a security measure because it includes protections against threats such as drones, ballistic missiles, and biohazards, as Newsmax reported.

Leon called that reading "incredible, if not disingenuous."

"Defendants argue that the entire ballroom construction project, from tip to tail, falls within the safety-and-security exception and therefore may proceed unabated. That is neither a reasonable nor a correct reading of my Order!"

The judge went further, writing that the administration's latest arguments "are in direct conflict with [their] prior representations", a pointed accusation that the government shifted its legal position after losing the first round.

Leon had previously addressed the ballroom project in earlier proceedings, but his March injunction concluded that the administration lacked statutory authorization to replace parts of the East Wing with a privately funded structure. He gave the government a 14-day window before the injunction took effect, allowing time to appeal.

The administration did appeal, arguing that the president has authority over White House construction decisions and that completing the project is critical to the safety of the president, his family, and White House staff. The D.C. Circuit's temporary stay kept work going while the legal questions were refined, but Thursday's amended order now draws a hard line between security-related underground work and the ballroom itself.

What the order allows, and what it doesn't

Leon's amended order is narrower than a full construction shutdown. Just The News reported that the judge explicitly preserved room for below-ground work tied to national security and presidential protection.

Leon wrote in his order:

"My Amended Order does not, however, stop below-ground construction of national security facilities, work necessary to provide for presidential security, and construction necessary to protect and secure the White House and the construction site itself."

He added: "Second, the injunction excludes only below-ground construction." That distinction matters. The administration can continue excavation, bunker construction, and other subterranean security upgrades. What it cannot do, absent congressional approval, is build the ballroom above grade.

The National Trust for Historic Preservation, which brought the lawsuit, maintained that the project cannot move forward without complying with federal law and proper review processes. Leon's ruling aligns with that position on the above-ground portion while carving out a lane for legitimate security work below the surface.

The project's rocky path from announcement to injunction

President Trump first announced plans for the 90,000-square-foot ballroom in July, saying the project would be funded "100% by me and some friends of mine." He initially estimated the cost at around $200 million, though the figure has since grown to $400 million in court filings and reporting. The cost discrepancy, references to $200 million, $300 million, and $400 million have appeared at various stages, remains unexplained.

The president had publicly criticized the lawsuit seeking to block the project, framing it as an attempt to interfere with improvements to the White House. A rendering of the proposed ballroom was shared on Truth Social on February 3, 2026. An image caption in the Fox News report shows the East Wing of the White House was demolished by October 23, 2025, meaning significant demolition and site preparation had already occurred before Leon's March injunction halted further work.

The White House said the president would directly reveal a name for the upcoming ballroom, though that announcement has not yet come.

The New York Post reported that when Leon issued his March injunction, he left the door open for Congress to step in. "It is not too late for Congress to authorize the continued construction of the ballroom project," Leon wrote at the time. That invitation still stands. The administration's legal path forward likely runs through Capitol Hill as much as through the appellate courts.

A legal fight with no easy off-ramp

The procedural posture is tangled. Leon issued the injunction. The administration appealed. The D.C. Circuit granted a temporary stay but sent the case back for clarification. Leon clarified, and sided against the government on above-ground work. The administration can now return to the appellate court to challenge Thursday's amended order, and given the pace of this litigation, that seems likely.

But the core legal question is straightforward: can the executive branch build a $400 million structure on White House grounds without explicit congressional authorization? Leon says no. The administration says the president's inherent authority over the White House, combined with national security needs, provides sufficient legal basis.

Breitbart noted that Leon rejected the administration's attempt to use national and presidential security concerns to justify continuing above-ground work, a framing that suggests the judge views the security argument as a post-hoc justification rather than the project's original purpose.

Leon's sharpest line captures his view of the dispute:

"National security is not a blank check to proceed with otherwise unlawful activity."

That language cuts both ways. It disciplines the executive branch's use of security rationales, but it also sets a precedent that could constrain future presidents' ability to make physical improvements to the White House complex without going through Congress first. Whether that precedent holds will depend on what the D.C. Circuit does next.

The broader pattern of legal and political conflicts involving the White House shows no sign of slowing. This case adds another front to an already crowded docket of disputes over executive authority.

Where it goes from here

Several questions remain open. The exact federal laws and review processes the National Trust says apply have not been fully detailed in public reporting. The case name and docket number have not appeared in the coverage reviewed here. And the shifting cost estimates, from $200 million to $400 million, have drawn no official explanation.

What is clear is that the ballroom, as an above-ground structure, cannot go up without either a successful appeal or an act of Congress. The administration has the legal right to keep building underground. It has the right to secure the site. But the grand ballroom President Trump envisioned remains, for now, a rendering on Truth Social and a half-demolished East Wing.

The White House has shown it moves quickly when it wants to shape a narrative. On this one, the fastest route forward may not run through the courts at all, but through the Capitol, where Congress could authorize the project with a single vote and end the legal fight overnight.

If the ballroom is worth building, it's worth building on solid legal ground. That means getting Congress on the record, not stretching a security exception until it covers a banquet hall.