1 of 3 | Workers continue construction on the octagon for the upcoming Ultimate Fighting Championship match on the South Lawn of the White House in Washington, D.C., on May 29. President Donald Trump is hosting a UFC match at the White House on June 14. Photo by Aaron Schwartz/UPI | License Photo

June 8 (UPI) -- The Public Integrity Project has filed a lawsuit against the Trump administration over hosting a UFC event on the White House's South Lawn.

The lawsuit, filed Saturday, alleges that the event violates National Park Service regulations, circumvents congressional authority and is meant to benefit President Donald Trump and his allies. Among those allies is Dana White, CEO of the UFC, who supported Trump during his presidential campaign.

"The president is giving White and his company what none have enjoyed before: unfettered access to the White House and Lincoln Memorial to stage a private, for-profit sports event, with all the promotional and branding opportunities that accompany such access," the lawsuit reads. "The UFC is not being coy about the event's pecuniary nature. One executive recently called it 'the greatest earned-marketing tool of all time.' And he is far from the only one salivating at the business upside."