On June 11, 2026, authorities responded to markings of the term '8647' etched into the grass of the National Mall in Washington, DC. The numbers are generally associated with opposition to former President Donald Trump. The US Park Police are investigating the incident as vandalism, especially as large crowds are expected in the area for a UFC match on Trump's birthday. Live images from the Washington Monument showed the numbers as dead grass, although they were not visible in earlier photos taken on June 5. Witnesses reported that emergency vehicles were present in the area around 1 p.m. on the day the markings were discovered.
A spokesperson for the Park Police stated that the cause of the grass discoloration has not yet been determined, and samples were collected for testing. The Secret Service and FBI are collaborating with the Park Police in the investigation. A representative from the Department of Interior condemned the markings as vandalism and emphasized that any threats against the President are taken seriously. The numbers '8647' have been interpreted by Trump's administration as a potential threat, while the number '86' is commonly used in the restaurant industry to indicate the removal of an order or patron, with Trump being the 47th president.