President Donald Trump slammed the preservationist nonprofit group that sued him over the East Wing Ballroom construction, calling the group “treasonists” and alleging they “revealed top military secrets.”
Trump posted the allegation late Friday evening after filing an emergency petition asking the Supreme Court to allow his planned construction of the White House ballroom to continue. The National Trust for Historic Preservation sued the Trump administration in December 2025 over the ballroom, arguing he did not follow the proper regulatory or authorization channels or timeline when he began construction. The U.S. District Court for the District of Columbia and a federal appeals court each sided with the preservation group.
“These are the TREASONISTS that brought the suit against the Military Complex. They revealed Top Military Secrets!” Trump wrote on Truth Social on Friday.
Trump argued that the nonprofit group put the “Top Secret” plans for the military bunker underneath the ballroom at risk by bringing the lawsuit forward, jeopardizing national security. The Trump administration has made similar assertions before, with Trump saying the shooting at the first White House Correspondents’ Association dinner in 2026 would have “never” occurred if it had taken place in the East Wing Ballroom.
“They are very bad for our Country. They stop many projects that are worthy, and hurt many others. In this case, they are trying to stop one that is vital to our National Security, and the Safety of all Presidents of the United States, both current and future, their families, staff, and Cabinet members,” Trump wrote on Truth Social.
“They were asked by the United States Military not to bring this suit because of the Top Secret nature of the important facility being built. They were shown detailed plans and specifications of this knitted, unified, and cohesive structure by Top Officers and Leaders in both the Military and Secret Service. But this did not deter them because they suffer from Trump Derangement Syndrome,” he continued.
HISTORICAL PRESERVATION GROUP WON’T END LAWSUIT AGAINST TRUMP’S BALLROOM
Back in April, after the shooting at the White House Correspondents’ Association dinner, the Trump administration Department of Justice urged the nonprofit group to drop its lawsuit, with Civil Division Assistant Attorney General Brett Shumate arguing in a letter to the group’s attorney, “your client should voluntarily dismiss this frivolous lawsuit today in light of last night’s assassination attempt on President Trump.”
“I hope yesterday’s narrow miss will help you finally realize the folly of a lawsuit that literally serves no purpose except to stop President Trump no matter the cost,” Shumate said. “Enough is enough.”
The National Trust for Historic Preservation’s attorney Gregory Craig had responded at the time, refusing to drop the lawsuit and arguing it did not endanger the president or national security.
“Your assertion that this lawsuit put the President’s life at ‘grave risk’ is incorrect and irresponsible,” Craig wrote. “Simply put, this case does not jeopardize the President’s safety in any way.”
The Washington Examiner has reached out to the National Trust for comment on Trump’s Truth Social post.
The group released a statement on Friday regarding the President’s emergency application to the Supreme Court, arguing that the Administration is making “transparent efforts to evade the rule of law, frustrate judicial review, and limit the availability of meaningful relief in the courts.”
“Each court reviewing this case has ruled that construction of the Ballroom is unlawful. Each court has seriously and carefully considered the Administration’s asserted national security concerns. And each court has ruled that while underground bunker construction can continue, Ballroom construction must stop,” the National Trust wrote.
TRUMP ASKS SUPREME COURT TO ALLOW WHITE HOUSE BALLROOM CONSTRUCTION TO CONTINUE
Solicitor General D. John Sauer argued in the emergency petition to the Supreme Court that the East Wing construction project is “vitally required by national security.”
The lower appeals court had ruled that the Trump administration needed congressional approval to move forward with construction.