On the eve of the rescheduled White House Correspondents' Dinner in Washington, D.C., the Secret Service's top officials warned of a sharp rise in nationwide threat levels, saying they are "off the charts.""I think the environment has become very volatile, and that's just across the board," U.S. Secret Service Director Sean Curran said during a security briefing ahead of the rescheduled dinner, set for the evening of July 24. "It's no secret."During the July 22 briefing before the banquet, which journalists, celebrities and political figures are expected to attend, Curran cited unprecedented threat levels across the country, with agents opening about 10,000 protective intelligence cases since January.The spike marks a near 40% increase from the same time last year, Secret Service spokesperson Nate Herring said."The numbers are numbers that this agency and certainly I have never seen in my 24-year career," Curran said.The annual dinner was halted and evacuated on April 25, 2026, after a gunman charged a security checkpoint at the Washington Hilton in an assassination attempt against U.S. President Donald Trump. Secret Service agents quickly evacuated the president and first lady while attendees took cover on the ballroom floor.While the annual dinner has historically been held at the Washington Hilton, Trump earlier this month announced that the venue had been changed to the Waldorf Astoria on Pennsylvania Avenue.Regardless of the increase in threats, the Secret Service said the dinner would go on and that the agency was prepared.“We have our special teams in place," Curran told reporters. "Right now, we have an advance team there ... and they will set up a plan to set that site up for success."Secret Service Deputy Director Matthew Quinn, who also spoke during the briefing alongside Curran, said the agency was not looking at the event "as a redo of a dinner."“We’re looking at this as a presidential site with Cabinet members and other protectees there, just like every site we do everywhere we go," Quinn said.Curran quickly added that Trump has been back to the Hilton since the attempted assassination there.Will Trump attend White House Correspondents' Association dinner?Trump has been the target of several assassination attempts and security incidents over the course of his political career, from official events to campaign rallies, according to law enforcement records and public reporting previously conducted by USA TODAY.Earlier this month on Truth Social, Trump said he planned to attend this year's rescheduled dinner and deliver remarks."I don’t know whether or not I will give the same rather nasty statements, at least as it concerns certain people, but we will soon find out. In any event, it will be a “HOT” ticket!" Trump wrote in the June 2 post.Contributing: Terry Mosely with USA TODAYNatalie Neysa Alund is a senior reporter for USA TODAY. Reach her at nalund@usatoday.com and follow her on X @nataliealund.