Known in the mixed martial arts world as the “Combatant in Chief,” Trump counts UFC President Dana White as a close friend and considers fans of the sport part of his political base.

Trump made the announcement during a winding speech that ricocheted from topic to topic at the Iowa state fairgrounds. The fairgrounds event served as a prelude to July 4 Independence Day celebrations on Friday.

“We’re going to have a UFC fight, think of this, on the grounds of the White House,” Trump said.

“We have a lot of land there. We are going to build a little – we are not, Dana (White) is going to do it … we are going to have a UFC fight, championship fight, full fight, like 20-25,000 people, and we are going to do that as part of 250 also,” he said, referring to the country’s anniversary of independence.

Trump has been a regular attendee at UFC fights, most recently attending one in New Jersey in June.

UFC and its parent company TKO Group Holdings did not immediately respond to a request for comment.