“One big reason why D.C.’s July 4 fireworks show is being pushed later: President Trump is scheduled to give a 45-minute speech on a National Mall stage,” Axios reports.“With temperatures expected to hit 102 and inauguration-level security on the Mall, every delay ripples through the evening — keeping people in the heat longer, slowing trips home and pushing bedtimes.”“Yes, but: Trump’s penchant for rollicking speeches makes it hard to pinpoint when the show starts.”