The streets of the nation's capital will host an IndyCar race this summer as part of celebrations marking America's 250th birthday, President Trump announced Friday, relishing the prospect of vehicles roaring past the White House at speeds approaching 200 mph. Mr. Trump signed an executive order establishing the race on Aug. 23 alongside Roger Penske, owner of Indianapolis Motor Speedway, IndyCar and teams in multiple racing series, including NASCAR. "It's going to be so exciting," Trump said. "