WASHINGTON — The District of Columbia and the commonwealth of Virginia mounted an emergency legal challenge Saturday to stop President Donald Trump from moving ahead with plans to erect a massive triumphal arch along the Potomac River, according to court documents.
The joint lawsuit, filed in the U.S. District Court for the District of Columbia by District Attorney General Brian Schwalb and Virginia Attorney General Jay Jones, urges a federal judge to grant a temporary restraining order before ground is broken. The legal action characterizes the monument as “flagrantly unlawful” and “legally indefensible” in the absence of explicit authorization from Congress, ABC News reported.
Mounting opposition and imminent deadlines
Saturday’s filing is the third lawsuit targeting the initiative, following an action brought in February by Vietnam War veterans and an architectural historian, as well as an October challenge submitted by the Arlington County governing board, Al Jazeera English reported. Federal officials have indicated that construction could begin as early as Thursday, Nov. 5, immediately following a scheduled vote on the final design by the National Capital Planning Commission.
U.S. District Judge Tanya Chutkan, who is presiding over the legal challenges, directed both sides on Saturday to confer and establish a briefing schedule regarding the motion for a temporary restraining order, NPR reported. Chutkan is also weighing a preliminary injunction requested in the veterans’ case, having already required the administration to provide 48 hours of advance notice before starting any building activity.
Environmental and infrastructure concerns
The attorneys general argued in their 45-page filing that breaking ground would result in immediate and irreversible harm to local infrastructure during an estimated three-year construction cycle, according to the news reports. The proposed structure would sit on Memorial Circle at the approach to Memorial Bridge, a critical artery connecting northern Virginia to the nation’s capital.
According to the lawsuit, the extensive building process would severely disrupt commuter patterns, obstruct regional emergency response routes and create environmental hazards, including stormwater discharge into the Potomac River, The Guardian US reported. The regional officials emphasized that their governments would face unrecoverable public expenses to mitigate these disruptions because federal authorities bypassed adequate local consultation.
Scale and disputed purpose of the monument
Designs submitted to federal planning authorities outline a 250-foot megastructure, standing more than twice as tall as the 99-foot Lincoln Memorial and surpassing France’s Arc de Triomphe, ABC News reported. The latest 106-page submission details an observation deck, interior administrative offices, programmatic space and a bronze winged figure modeled after the Statue of Liberty carrying an eternal flame.
While recent submissions describe public observation spaces, Trump has repeatedly characterized the monument as a strategic installation capable of housing snipers, munitions and drone operations, ABC News and Al Jazeera English reported. To support the administration’s position against earlier lawsuits, top defense and homeland security officials submitted sworn statements arguing the facility holds vital national security utility.
Representatives for both the White House and the Department of the Interior did not immediately provide comment regarding the weekend legal filing, NPR reported. It remains uncertain whether Judge Chutkan will intervene to pause administrative action before the planning commission convenes for its vote on Thursday.



