Workers assemble signage ahead of the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)

Workers assemble signage ahead of the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)

Workers assemble signage ahead of the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)

Workers assemble signage near the Smithsonian Castle for the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)

Workers assemble signage near the Smithsonian Castle for the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)

Workers assemble signage near the Smithsonian Castle for the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)

Workers assemble signage near the Smithsonian Castle for the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)

Workers prepare the tire barrier for the IndyCar series Freedom 250 Grand Prix on the National Mall in Washington, DC, on August 17, 2026. The race will be held on August 23, 2026, on a temporary street circuit in Washington, DC. (Photo by Kent Nishimura / AFP via Getty Images)