WASHINGTON—President Donald Trump is attending the rescheduled White House Correspondents’ Dinner in Washington on July 24. The event that was originally held on April 25 was abruptly canceled due to an assassination attempt against the president. The rescheduled gala is taking place at the Waldorf Astoria. The president is expected to deliver remarks soon. “Whatever may divide us, we stand together against political violence,” White House Correspondents’ Association outgoing president Weijia Jiang said during a speech at the dinner. “An assassination attempt on our president is an attack on democracy itself,” she added, drawing applause from the crowd. She also said, “Tonight, our message is this: We are back. We will not be intimidated.”...