Multiple reports describe preparations for a UFC-style cage-fighting event scheduled to be held on the White House grounds as part of former President Donald Trump’s birthday celebrations. The outlets say workers are finishing construction on a large outdoor arena on the White House lawn ahead of the event. One report flags an “extreme” problem that it says could disrupt the spectacle before any fight takes place, though it does not provide detailed specifics in the excerpts provided. The articles indicate the event is expected to be a major sporting and entertainment undertaking at the presidential residence, involving significant staging and setup on-site. Aside from the general timeline—final touches to the arena and the warning of a potential issue—no additional confirmed details are included in the supplied text, and the nature of the concern is not described further. The reporting therefore centers on event logistics and the existence of a pre-event risk or obstacle during final preparations, without clarifying the full circumstances.