Preservationists Sue Trump Over White House Ballroom

The National Trust for Historic Preservation filed a federal lawsuit in December 2025 to stop President Donald Trump’s $400 million White House ballroom project, arguing he demolished the historic East Wing and broke ground on a 90,000-square-foot addition without congressional authorization, public review, or required federal agency approvals. The case has since produced a preliminary injunction from a federal district court judge, multiple reversals by a federal appeals panel, and a constitutional confrontation over the limits of presidential authority over public property.

The lawsuit is ongoing in the U.S. District Court for the District of Columbia under Judge Richard Leon, with the U.S. Court of Appeals for the D.C. Circuit also deeply involved. As of May 2026, full construction is proceeding under an appellate stay, with oral arguments before the appeals panel scheduled for June 5, 2026. That hearing will determine whether above-ground construction can continue while the lawsuit plays out.

Lawsuit Timeline and Updates

October 2025 — East Wing Demolished, Construction Begins

President Trump proposed the ballroom project early in his second term, pitching a 90,000-square-foot events facility to replace the White House’s historic East Wing. Trump argued the ballroom would be far more secure than holding presidential events at external venues and that it would be funded by private donations. Public money, however, was appropriated for a below-ground bunker and security upgrades at the site.

In October 2025, the Trump administration demolished the East Wing — a structure that had stood since the 1940s and housed, among other things, an underground bomb shelter constructed during Franklin D. Roosevelt’s presidency. Preservationists urged the White House to pause and submit plans to the National Capital Planning Commission and the Commission of Fine Arts before proceeding. The administration did not. Construction continued through November.

December 12, 2025 — National Trust Files Lawsuit

One week after the East Wing demolition was completed, the National Trust for Historic Preservation filed a federal lawsuit against Trump and several federal agencies in the U.S. District Court for the District of Columbia. The complaint alleged violations of the National Capital Planning Act, the National Environmental Policy Act, and the property clause of the U.S. Constitution, which reserves to Congress the authority to make rules regarding property belonging to the United States.

The National Trust — a nonprofit chartered by Congress in 1949 to facilitate public participation in the preservation of historically significant sites — sought a temporary restraining order and preliminary injunction to freeze all construction. “No president is legally allowed to tear down portions of the White House without any review whatsoever,” the complaint stated. “And no president is legally allowed to construct a ballroom on public property without giving the public the opportunity to weigh in.”

December 2025 — First Hearing; Judge Denies Initial TRO but Sets Limits

Judge Richard Leon held an initial hearing days after the lawsuit was filed. He declined to immediately halt all construction, finding the Trust had not yet established sufficient irreparable harm to justify a full stop. But he placed an important constraint on the administration: construction crews could not build any below-ground structures during the next two weeks that would determine the final footprint and placement of the above-ground ballroom. Leon made clear that if that condition were violated, the White House would be “forced to take it down.”

Leon also required the government to submit construction plans to the National Capital Planning Commission by year’s end and noted the Justice Department had already made initial outreach to schedule those meetings.

January 2026 — Trump Claims “Top Secret” Exposure; First Amended Complaint

In January 2026, Trump posted on Truth Social that the lawsuit had exposed a “Top Secret fact” — the U.S. military and Secret Service’s involvement in designing portions of the project, including a highly sophisticated underground bunker. Trump wrote that “a President has never needed permission to change or enhance” the White House and characterized the ballroom as a cover structure for a military installation below ground.

Judge Leon held a hearing on January 22 to consider the Trust’s motion for a preliminary injunction. He did not rule from the bench, saying a written decision would follow. The government argued presidential authority over the White House grounds is plenary. The Trust argued five separate federal laws had been broken by the demolition and construction. Leon raised doubts in the hearing about whether Trump had the authority he claimed.

February to March 2026 — Second Amended Complaint; NCPC Approval

In February 2026, Leon partially agreed with some of the administration’s jurisdictional arguments, prompting the Trust to file a second amended complaint on March 2 adding ultra vires claims — a legal doctrine allowing courts to stop government officials from acting outside the specific powers Congress has granted them. The ultra vires theory provided a path around potential administrative procedure objections that had complicated the original complaint.

On April 2, the National Capital Planning Commission — the 12-member federal body charged with approving major construction on federal property in the Washington region — voted to give the ballroom project final approval. Commissioners argued the project was consistent with past White House construction undertaken by prior presidents. The Trust argued this approval, coming after demolition had already occurred and construction was underway, was procedurally backwards and did not cure the prior legal violations.

March 31, 2026 — Judge Leon Issues Preliminary Injunction

Judge Leon ruled on March 31 that construction “must stop until Congress authorizes its completion.” In an emphatic written order, Leon concluded that the National Trust was likely to succeed on the merits of its case and that no statute “comes close” to giving the president the authority he claimed to proceed with the project without congressional authorization.

“The President of the United States is the steward of the White House for future generations of First Families,” Leon wrote. “He is not, however, the owner!” He granted a preliminary injunction halting above-ground construction but exempted work “necessary to ensure the safety and security of the White House” — a carve-out intended to allow the below-ground bunker construction to continue. Leon stayed his order for 14 days to allow the administration time to appeal.

April 11, 2026 — D.C. Circuit Temporarily Stays Leon’s Order

The Trump administration appealed immediately. The U.S. Court of Appeals for the D.C. Circuit issued an administrative stay of Leon’s preliminary injunction on April 11, pausing the injunction for three days while the appellate panel assessed the situation. The National Trust’s president and CEO Carol Quillen acknowledged the stay while affirming the group’s continued commitment to the litigation.

The three-judge appeals panel then ordered Leon to reconsider the national security implications of halting construction. The panel said it lacked enough information to decide how much of the project could be suspended without jeopardizing the safety of the president, his family, or White House staff.

April 17, 2026 — Leon Reissues Order, Restricts to Below-Ground Only

Following the appellate panel’s instruction, Leon issued a revised ruling on April 17. He maintained the block on above-ground ballroom construction but explicitly permitted below-ground work to continue, including excavations, bunkers, military installations, and medical facilities. Leon reviewed classified material submitted by the government in camera before concluding that halting construction would not jeopardize national security.

The Trump administration argued that the safety-and-security exception in Leon’s original order covered the entire project, including the above-ground ballroom structure. Leon rejected that interpretation directly. “Defendants argue that the entire ballroom construction project, from tip to tail, falls within the safety-and-security exception and therefore may proceed unabated,” he wrote. “That is neither a reasonable nor a correct reading of my Order!” He added that national security “is not a blank check to proceed with otherwise unlawful activity.”

Trump responded on Truth Social, calling Leon a “Trump Hating” judge who had “gone out of his way to undermine National Security.” The administration immediately filed notice of another appeal.

April 18, 2026 — Appeals Court Allows Full Construction to Resume Through June

One day after Leon’s revised ruling, the three-judge D.C. Circuit panel granted the Trump administration a stay of Leon’s above-ground construction block. The stay allowed all construction — including above-ground work — to proceed until at least June 5, 2026, the date the court scheduled for oral arguments. Construction resumed at full pace.

April 26, 2026 — DOJ Pressures Trust to Drop Lawsuit After WHCD Shooting

On April 26, 2026, a gunman opened fire outside the Washington Hilton Hotel during the White House Correspondents’ Association dinner, prompting the evacuation of Trump and other senior officials. The shooting became the administration’s most aggressive talking point in defense of the ballroom: Trump and his allies argued that an on-grounds event facility would have been far safer than the external venue.

The following day, acting Attorney General Todd Blanche posted a letter to social media demanding that the National Trust voluntarily dismiss what he called a “frivolous lawsuit” in light of the shooting. Blanche wrote that the lawsuit “puts the lives of the President, his family, and his staff at great risk.” The DOJ threatened to file its own motion to dismiss if the Trust refused.

The Trust declined. Attorney Gregory Craig wrote back that the shooting did not change the legal issues at the center of the case. “What Saturday’s awful event does not change is that the Constitution and multiple federal statutes require Congress to authorize construction of a ballroom on White House grounds, and that Congress has not done so,” Craig wrote. Quillen added: “We have always acknowledged the utility of a larger meeting space at the White House. Building it lawfully requires the approval of Congress, which the Administration could seek at any time.”

Late April 2026 — Administration Files Trump-Tone Brief Attacking the Trust

The Trump administration filed a court brief in the continuing litigation that opened with an attack on the National Trust’s very name. “The National Trust for Historic Preservation is a beautiful name, but even their name is FAKE because when they add the words ‘in the United States’ to the National Trust for Historic Preservation it makes it sound like a Governmental Agency, which it is not,” the filing began. Legal commentators noted the filing adopted the informal, combative style associated with Trump’s own public communications rather than standard legal drafting.

June 5, 2026 — D.C. Circuit Oral Arguments (Upcoming)

The pivotal appellate hearing is scheduled for June 5, 2026. The three-judge panel will consider whether to allow full construction to continue while the underlying lawsuit proceeds. The outcome of that hearing will shape the entire trajectory of the case. If the court reinstates Leon’s above-ground construction block, the administration will likely seek emergency Supreme Court review. If the court sides with the administration, construction will continue unimpeded pending a final merits ruling.

What the Lawsuit Alleges

The National Trust’s legal theory rests on three pillars. The first is statutory: the National Capital Planning Act requires that major construction projects on federal land in the Washington region receive prior approval from the National Capital Planning Commission and the Commission of Fine Arts. The administration bypassed both bodies before demolishing the East Wing and beginning construction. The NCPC ultimately approved the project in April 2026, but the Trust argues retroactive approval does not cure violations that occurred before it was granted.

The second pillar is environmental: the National Environmental Policy Act requires federal agencies to prepare an environmental impact assessment before undertaking major construction on public land. No such assessment was completed or circulated for public comment before demolition of the East Wing.

The third pillar is constitutional: the property clause of Article IV of the U.S. Constitution states that Congress has the power to dispose of and make all rules regarding property belonging to the United States. The Trust argues this provision means a president cannot order the demolition or construction of structures on White House grounds without express congressional authorization. That authorization was never sought and has not been granted.

The ultra vires claims added in the second amended complaint add a fourth legal angle. Even absent a clear statutory violation, courts can stop executive branch officials from acting entirely outside the scope of powers that Congress has granted them. The Trust argues that no law — executive or statutory — gives the president the power to unilaterally alter the physical structure of a building the Constitution places under congressional stewardship.

The Administration’s Defense

The Trump administration’s defense rests primarily on presidential authority over the White House as the president’s official residence and workplace. White House officials have argued that presidents have historically renovated and modified the White House without congressional approval, and that Trump’s project is consistent with that tradition. The NCPC’s April 2026 approval, they argue, demonstrates compliance with the relevant regulatory framework.

The national security argument has grown more prominent as the litigation has progressed. The administration argues that the below-ground military installation — which Trump described publicly as a “big complex” guarding against drones, ballistic missiles, and biohazards — represents a critical and time-sensitive security upgrade. Halting the entire project, the DOJ contends, would jeopardize the president’s safety. After the WHCD shooting, the administration leaned even harder on this framing, arguing that the external event venue model had been exposed as dangerously inadequate.

Judge Leon rejected the administration’s expansive reading of the security exception, concluding that below-ground bunker work could proceed while above-ground ballroom construction was halted. The D.C. Circuit panel has not yet ruled definitively on the merits — its April stay was procedural, allowing time for full briefing and argument before June 5.

Why the Property Clause Matters

The constitutional argument at the heart of this case is not a minor procedural dispute. It goes to a foundational question: who owns the White House? Presidents occupy it, but Congress has historically controlled the purse strings for its maintenance and understood itself as the steward of federal property under the Constitution’s property clause.

What matters here is the precedent. If a court rules that the president can demolish and rebuild sections of the White House without congressional input, the implications extend beyond this project. Future presidents could alter federally owned structures, landmarks, and public spaces under the same claimed authority. Leon’s ruling was direct on this point: “The White House does not belong to any one man — not even a president.” That sentence will define the legal and political stakes of the June 5 argument.

The administration’s position — that a president has always had authority to “enhance” the White House — has not been tested against a project of this scale. Prior White House renovations were either modest in scope, completed with congressional involvement, or both. A 90,000-square-foot addition on the site of a demolished historic wing is different in kind, not just in degree.

The WHCA Shooting and the Lawsuit’s Political Dimension

The April 26 shooting outside the White House Correspondents’ Dinner transformed the ballroom case from a legal dispute into a political flashpoint. The administration moved quickly to connect the shooting to its security justification for the ballroom. Trump argued that an on-grounds venue would have eliminated the need to hold presidential events at hotels and convention centers vulnerable to outside attack.

The DOJ’s demand that the Trust dismiss the lawsuit was extraordinary. Federal agencies rarely pressure private litigants to drop cases by invoking unrelated security incidents. The Trust’s response was equally direct: the legal questions do not change because of external events. The Constitution still requires congressional authorization. The statutes still require federal review. Neither of those requirements disappears because a shooting occurred at a Washington hotel.

The administration’s simultaneous appeal to security and aesthetics — Blanche called the ballroom both essential for safety and “spectacular and beautiful” — illustrated the dual nature of the project’s political meaning. For Trump, the ballroom is both a legacy construction project and a security infrastructure upgrade. For preservationists and legal critics, it is an unauthorized alteration of the nation’s most symbolically significant building.

What Could Happen If the Trust Wins

If the National Trust ultimately prevails on the merits, the court’s remedies could be sweeping. The Trust is seeking a declaratory judgment that the construction is unlawful and a permanent injunction requiring the administration to halt all work until congressional authorization is obtained and the required federal agency reviews are completed.

Judge Leon warned the administration at an early hearing that if the plaintiff prevails, the government “should be prepared to take it down” — a statement indicating that above-ground construction completed without authorization could be subject to a court-ordered demolition. Whether any court would actually compel the demolition of a partially or fully constructed White House ballroom is unclear and would certainly be litigated further. But Leon’s warning signals that the legal exposure for proceeding without authorization is not trivial.

The case also carries implications beyond this project. A ruling that the property clause requires congressional authorization for major alterations to federally owned structures would constrain future administrations across party lines. That is precisely the Trust’s point. As the complaint stated: “Not President Trump, not President Joe Biden, and not anyone else” may tear down parts of the White House without review.

What This Lawsuit Teaches Consumers

The White House ballroom case is not a conventional lawsuit. No individual plaintiff is seeking compensation for a personal injury. But what it illustrates about the relationship between executive power and legal constraint is directly relevant to anyone who believes that public institutions and public buildings belong to the public — not to whoever happens to occupy them at a given moment.

The pattern here is familiar from other institutional clashes: an executive actor moves fast, creates facts on the ground, and then argues that undoing those facts would cause more harm than allowing them to stand. Demolish the wing first. Start construction. Then tell the court that stopping now would be too disruptive, too expensive, too dangerous. Legal compliance becomes someone else’s problem to catch up to, not the administration’s obligation to secure in advance.

The National Trust’s lawsuit stands for the proposition that public participation in decisions about public property is not optional. The White House is not a private residence that a wealthy occupant can remodel at will. It is a federally owned building, on federally owned land, subject to federal law. No warning was issued. No review was conducted. No congressional vote was held. The June 5 hearing will test whether federal courts are willing to hold that line. For broader context on how federal agencies and executive officials face legal challenges over unilateral action, see the related coverage in the DOGE transparency FOIA lawsuit and the Capitol Plaque lawsuit.