Thunderstorms could disrupt the unprecedented UFC event scheduled for Sunday on the White House South Lawn. Approximately 4,300 invited guests will witness the first professional sporting event at the presidential residence, while an additional 85,000 fans gather at a nearby viewing area. The National Weather Service forecasts damaging storms with a 70% chance of rain and potential lightning strikes that could halt proceedings for 30 minutes.

The $60m production features a 92-foot steel structure called the Claw weighing 600 tonnes. Seven bouts cap with Ilia Topuria versus Justin Gaethje in the main event. UFC president Dana White partnered with President Trump for this milestone celebration coinciding with Trump's 80th birthday and Flag Day. The event airs exclusively on Paramount+ as part of America's 250th anniversary festivities.

A last-minute lawsuit from the Public Integrity Project failed to stop the show, arguing the event lacked proper approvals and highlighted Trump's financial ties to White. Critics call it inappropriate, with only 16% of Americans supporting the White House venue according to a recent poll.

Despite legal challenges and weather concerns, the unprecedented MMA spectacle represents a significant cultural moment for a sport that was once banned as 'human cockfighting' but now commands billion-dollar broadcasting deals.