WASHINGTON, DC - AUGUST 18: A police officer gives directions through fencing as visitors to the National Mall attempt to navigate a maze of road closures for the Freedom 250 Grand Prix on August 18, 2026 in Washington, DC. Final preparations continue for this weekend's inaugural Freedom 250 Grand Prix, a historic two-day NTT IndyCar Series street race past iconic National Mall landmarks to celebrate America's 250th anniversary. (Photo by Andrew Harnik/Getty Images)