Judge tightens limits on Trump's planned Arlington arch as veterans' lawsuit heads to a ruling

A federal judge has tightened restrictions on the Trump administration's effort to break ground on a 250-foot arch near Arlington National Cemetery, ordering officials to give the court 48 hours' notice before any activity at the site as a lawsuit from Vietnam War veterans over the project's legality moves toward a ruling.

U.S. District Judge Tanya Chutkan issued the order on Friday, days after Interior Secretary Doug Burgum announced that excavation on the "Great Triumphal Arch and Military Observation Deck" would begin within two weeks, and hours after the plaintiffs asked her to block the work outright. The order does not stop the government from proceeding with limited archaeological survey work, but it requires advance warning of anything further and reaffirms an earlier commitment that no construction or demolition may begin without either final federal authorization or 14 days' notice to the court.

The structure at issue would rise 250 feet at Memorial Circle on Columbia Island, the traffic roundabout at the western end of Arlington Memorial Bridge, roughly midway between the Lincoln Memorial and Arlington House. At that height it would be more than twice as tall as the Lincoln Memorial and taller than the Arc de Triomphe in Paris, which is 164 feet. The government has said it wants to dig four test pits beginning on or after September 21 to check for buried artifacts, with the site restored by October 31 if nothing further proceeds. No official total cost has been released; the National Endowment for the Humanities has set aside $15 million in special-initiative and matching funds toward the project, and President Trump has said leftover private donations from the White House ballroom construction could also be applied to it.

A Monument Without Congress

The arch has moved through federal review boards for nearly a year without the one approval its opponents say matters most: an act of Congress. The Commission of Fine Arts gave conceptual approval in April, and the National Capital Planning Commission approved preliminary site and building plans in July, but commissioners left unresolved whether the century-old Height of Buildings Act, which caps most Washington structures at 130 feet, even applies to a project built by the federal government on federal land. A final commission vote has not occurred.

Three Vietnam War veterans, Michael Lemmon, Shaun Byrnes and Jon Gundersen, along with architectural historian Calder Loth, sued in February through the nonprofit legal group Public Citizen, arguing the project violates the Commemorative Works Act, a 1986 law requiring congressional authorization for monuments on National Park Service land in central Washington. The Park Service's own Section 106 historic-preservation review, part of an ongoing environmental and cultural-resources process, has previously flagged dozens of nearby historic properties, including Arlington Memorial Bridge and the cemetery itself, as facing adverse visual effects from the structure.

Members of Congress have pressed the same argument. In a June letter to Secretary Burgum, Senator Angus King of Maine and five colleagues wrote that "because Congress has enacted no laws authorizing this commemorative work, NPS must take the only course allowed by law: suspend the Section 106 process," calling on the department to issue no permits and undertake no ground disturbance absent congressional action. A coalition of 19 state attorneys general, led by California's Rob Bonta, made a parallel case in an amicus brief filed earlier this year, arguing the project bypasses statutes designed to protect the capital's historic sightlines.

"Unlawful Many Times Over"

The veterans and their attorneys frame the dispute as a straightforward separation-of-powers question, not a design critique. Their case, Lemmon v. Trump, has been pending in Washington's federal district court since February, and a hearing in April saw Judge Chutkan press government lawyers on Trump's authority to build the monument at all. That exchange led to an informal truce: the government agreed to 14 days' notice before construction, and the plaintiffs withdrew their initial injunction request.

That truce unraveled after Burgum's September 3 announcement. Attorneys for the veterans wrote in their new filing that the planned work is "unlawful many times over" and that construction "cannot and should not proceed apace" absent congressional sign-off.

"The imminent course of action that Secretary Burgum has announced to the American people is unlawful many times over."

The Justice Department has countered on two fronts. It says the work now scheduled is limited archaeological testing, not construction, and therefore does not trigger the 14-day notice at all. Separately, in a filing this month, government lawyers argued that the Supreme Court's late-August decision allowing construction to proceed on a separate White House ballroom project — a case that turned on the plaintiffs' legal standing rather than the underlying legality of unauthorized federal construction — should likewise doom the veterans' arch lawsuit, contending they "cannot establish standing based on desires to view Arlington House or the Lincoln Memorial." Public Citizen has rejected that comparison, noting Chief Justice John Roberts wrote in dissent from that ruling that the ballroom construction was "likely unlawful" under the same category of statute the veterans invoke here.

What Happens Next

For now, Judge Chutkan's order leaves the narrow archaeological survey on track while blocking anything broader. The government has committed to giving the court 48 hours' warning before any activity beyond identifying buried cultural material, and the existing 14-day notice requirement for actual construction remains in force pending further rulings. Cross-motions for summary judgment on the core legal question, whether the arch requires congressional authorization, are already before the court, and an expedited briefing schedule is expected given the government's stated intent to begin digging within weeks.

The National Capital Planning Commission has not scheduled a final vote on the project's height exception or building plans, meaning the arch still lacks the last layer of federal design approval even as excavation equipment is expected to arrive at Memorial Circle. Veterans' groups, historic-preservation advocates and the state attorneys general who joined California's brief are watching the docket closely, as is the administration, which has treated the arch as a marquee project tied to next year's 250th anniversary of American independence. Whichever way Judge Chutkan rules on the underlying authorization question, an appeal to the D.C. Circuit is widely expected to follow.