District of Columbia and Virginia sue to block Trump’s triumphal arch plans

What the report says

The District of Columbia and Virginia have filed a joint lawsuit aimed at stopping President Donald Trump’s proposed triumphal arch near the Potomac River, close to Arlington National Cemetery. Reported by Al Jazeera on October 31, 2026, the complaint asks a federal court to block construction before it begins and argues that the project is unlawful and should not proceed without congressional approval.

According to the article, the two governments say the monument would create major local disruptions, including traffic rerouting, slower emergency response times, pollution and runoff into the Potomac. They also warn that the project would damage historic views, especially around Arlington National Cemetery, and could affect nearby flight paths. Local opposition has already emerged from veterans’ groups, Arlington County and earlier plaintiffs who sought to halt the plan.

The proposed structure would be a large, decorative arch modeled loosely on Paris’s Arc de Triomphe, but on a much larger scale. The report says the design would include a winged Lady Liberty figure, observation areas, offices and a fire command center, with Trump also describing possible military uses. White House officials have indicated work could begin soon, while a federal judge is already considering related requests for a pause. The new filing makes this the third lawsuit challenging the monument.