Key facts
- A lawsuit seeks to block Donald Trump's planned UFC event at the White House on June 14.
- The event is scheduled to coincide with Trump's 80th birthday.
- The lawsuit alleges the event violates rules barring sporting events on public monuments.
- Construction of a metal arena structure called 'the Claw' on the South Lawn is also being challenged.
- The White House called the lawsuit an 'obstructionist, baseless, and dilatory lawsuit'.
A federal judge in Washington has been asked to block President Donald Trump's plan to host an Ultimate Fighting Championship mixed martial arts bout at the White House next week, scheduled to coincide with his 80th birthday on June 14. The lawsuit, filed by two Washington-area residents, also seeks to halt construction of the metal arena structure known as 'the Claw' on the South Lawn.