DC girds for fair and rally as National Mall roads, Metro detours take effect

Road closures around the National Mall and Metro detours are in place for the Great American State Fair and a campaign-style rally by President Trump, with security screenings at gates on 12th and 7th Streets and a Smithsonian entrance closure 2:30–10:30 p.m. Wednesday. Closures include Constitution Ave (15th to 7th NW), 14th St (Constitution to Independence), and the 12th Street Expressway, and several bus routes (D30, D40, D60) are detoured. Large National Park Service zones near the National Mall are closed or restricted through July 24 for the event and FIFA Fan Zone, with opening times varying by area; travelers should monitor updates and expect security screenings and changes through July.