On Sunday the South Lawn of the White House was transformed into a temporary UFC octagon for a private fight night that celebrated former President Donald Trump’s 80th birthday and the United States’ 250th anniversary.

The evening’s headline bout featured U.S. fighter Justin Gaethje who defeated Ilia Topuria, the then‑under‑world champion. A total of 14 fighters battled in back‑to‑back rounds that culminated in the lightweight title win.

All‑in, the UFC poured 60 million pounds of capital into the operation – including a 600‑tonne, 92‑ft “Claw” canopy that towers over the octagon. The cost also covered $700,000 in lawn repairs to restore the historic “Easter Egg Roll” ground.

Spectators were a mix of federal officials, White House staff and long‑time UFC ally Dana White. Trump sat close to the octagon, and his sons were in attendance. First‑responders and Medal of Honor recipients escorted fighters onto the stage.

The night was postponed by an hour when an afternoon thunderstorm threat forced a temporary pause. The event still went on once conditions cleared, but the weather placed a sharp reminder of the risks of grass‑based sporting venues.

Just before the fight, a lawsuit filed by the Public Integrity Project tried to halt the event, citing Trump’s personal ties to the UFC and lack of formal approvals. A judge denied the emergency injunction, calling the claim “frivolous,” and the fight proceeded.

A Reuters/Ipsos poll released on Friday found that only 16% of Americans believed the event was appropriate, while 46% said it was not. GOP approval hovered around 33%, indicating a split view across the political spectrum.

Trump dubbed the showdown the “greatest show on Earth,” comparing the canopy to the Eiffel Tower. Meanwhile U.S. Secretary of State Marco Rubio hailed UFC as a new form of soft diplomatic power and announced a partnership to leverage mixed‑martial arts for diplomacy.

For those who missed the bout, the fight was streamed exclusively on Paramount+, a platform owned by Trump ally David Ellison.

The White House’s schedule for the quarter‑anniversary also includes a National Mall IndyCar race and a “Great American State Fair” planned for July. The UFC event has become a flashpoint for debate about the role of sport at the federal level and the intersection of politics and entertainment.