Lawsuit Seeks to Halt Construction of Trump's Triumphal Arch

Plaintiffs in a lawsuit aiming to prevent the Trump administration from constructing a triumphal arch along the Potomac River have requested a federal judge to halt all construction plans. This move comes a day after the National Park Service indicated that work could begin as early as November 5.

The plaintiffs, comprising three veterans and a retired architectural historian, are asking U.S. District Judge Tanya Chutkan to prohibit the administration and the National Park Service from initiating construction of any structure in Memorial Circle without congressional authorization while the litigation is ongoing. The government's notice stated that construction could commence after approval from the National Capital Planning Commission, a final decision from the Interior Department, and proper notification, with the earliest possible start date being November 5, 2026.

The proposed arch, a project championed by President Donald Trump, is planned to be 250 feet tall and has been described by Trump as potentially including national security functions. However, plans submitted to the National Capital Planning Commission by the Interior Department do not explicitly mention the "military complex" Trump has associated with the structure, though the agency noted the design could accommodate such features.

Attorneys for the plaintiffs argued that the government's notice makes it clear they intend to begin construction imminently, rather than await a court decision on the pending summary judgment motions. While the arch has received early approval from the U.S. Commission of Fine Arts, whose members were appointed by Trump, the plaintiffs contend that congressional approval is necessary for such a project.

The Public Citizen Litigation Group, representing some of the plaintiffs, pointed to other administration projects that proceeded with construction despite ongoing lawsuits. Judge Chutkan has directed both parties to meet and submit a briefing schedule by Friday noon.

This arch is one of several initiatives by President Trump aimed at reshaping Washington, D.C., including renovations to a public golf course and proposals concerning the John F. Kennedy Center for the Performing Arts. A separate lawsuit challenging the arch's construction has been filed by Arlington County, Virginia, marking the first governmental body to take legal action against the monument. That suit, filed in the Eastern District of Virginia, criticized the project's rapid progression without a full review process, a claim disputed by the administration.