The Cultural Landscape Foundation filed a federal lawsuit Monday to stop the Trump administration from painting the Lincoln Memorial Reflecting Pool blue [1].
The legal challenge highlights a conflict between executive aesthetic preferences and federal laws designed to protect the nation's historic landscapes. If the project proceeds, critics argue it could permanently alter one of the most recognized sites on the National Mall in Washington, D.C. [2].
The lawsuit, filed May 11, 2026 [1], alleges that the U.S. Department of the Interior violated the National Historic Preservation Act and other federal statutes [2]. The nonprofit argues the administration ignored constitutionally mandated procedures and opted for a rapid, low-quality renovation that could damage the site [3].
At the center of the dispute is a plan to coat the bottom of the pool in a color described as “American flag blue” [2]. The estimated cost of the repainting project ranges from $2.3 million [1] to $2.5 million [4].
"The administration’s plan to paint the reflecting pool ‘American flag blue’ is a reckless, unilateral decision that violates the National Historic Preservation Act," Charles Birnbaum, CEO of The Cultural Landscape Foundation, said [4].
Birnbaum said the group is asking the court to halt the work immediately to protect the iconic resource [1]. He said the administration's actions disregard the law and the public's interest in preserving national monuments [3].
The plaintiffs contend that the project was pushed through without the necessary reviews required for historic sites, a process intended to ensure that changes do not diminish the historical or architectural integrity of a landmark [2].
“The administration’s plan to paint the reflecting pool ‘American flag blue’ is a reckless, unilateral decision”
This lawsuit tests the limits of executive authority regarding the modification of federal landmarks. By invoking the National Historic Preservation Act, the plaintiffs are attempting to establish that aesthetic changes to public spaces are not merely administrative decisions but are subject to legal oversight to prevent the erosion of historical authenticity.
