Islam Makhachev records 17th UFC victory in a row in his welterweight title defeat of Ian Machado Garry.
At least five people are in custody in an alleged plot that included 23 people, according to US media reports.
In perhaps the biggest upset in UFC history, Gaethje becomes champion after Topuria’s corner stops fight.
The celebrations to mark the US’s 250th anniversary have been overshadowed by questions about Trump’s influence.
UFC Freedom 250 will proceed after a federal judge denies a legal challenge to the event on Friday.
Federal judge rules UFC fight at White House on Trump’s birthday can proceed despite legal challenges.
Fight time, undercard, stats and how to watch as Topuria and Gaethje tussle in front of Donald Trump at the White House.
The UFC bout at the White House marks the 250th anniversary of the US and President Donald Trump’s 80th birthday.
MMA legend will compete for the first time in five years at UFC 329 in the United States.
Rousey won the fight with her signature armbar lock, forcing Carano to submit just 17 seconds into the bout.
