President Biden told a rally crowd of mostly Black voters in Philadelphia that former President Donald Trump is only considering pardons for those convicted in the Jan. 6, 2021, attack on the U.S. Capitol because the majority of rioters were White. “What do you think would have happened if Black Americans had stormed the Capital? I don’t think he would be talking about pardons,” Mr. Biden said at Girard College, an independent college prep school with about 80% Black students. “This is the...