The Cultural Landscape Foundation seeks to block the replacement of pool’s ‘gray stone’ appearance

A historic preservation group on Monday filed a lawsuit seeking to halt Donald Trump’s ongoing renovation to the Lincoln Memorial’s reflecting pool, the latest in a string of court challenges to efforts to remake Washington DC landmarks from the US president and former real estate developer.

The lawsuit, filed by the Cultural Landscape Foundation, alleged the renovation violates the National Historic Preservation Act, a law passed by Congress in 1996 that outlines procedures for changes to historic properties.

The nonprofit seeks an emergency order halting the Trump administration’s overhaul, which focuses on replacing the pool’s “gray stone” appearance with an industrial-strength coating in the color of a blue swimming pool.

“The dark grey, achromatic basin was not incidental to the design,” the lawsuit stated. “It was the design.“