President Donald Trump said to reporters on Friday that construction will begin “over the next week” on a temporary arena on the White House South Lawn to host a planned UFC event in June. Appearing outside of the White House, Trump answered a question on the event, scheduled for June 14 to mark both his birthday and the nation’s 250th anniversary. “You’re gonna be hosting the first-ever UFC fight at the White House in 45 days, sir,” said an unpictured reporter. “Can you preview the event? Can you talk about the card and what does it mean…?” “They have some...