Ruth, 11, from Burke, Va., gets cold water poured on her head to cool off at the Great American State Fair on the National Mall, Thursday, July 2, 2026, in Washington. (AP Photo/Alex Brandon)

Mickelina Papotto, of Salem, Ore., left, and Lorie Odegaard, of Gaithersburg, Md., fan themselves while waiting in line for the ferris wheel at the Great American State Fair on the National Mall, Wednesday, July 1, 2026, in Washington. (AP Photo/Jacquelyn Martin)

A vendor pulls out a bottle of water from a tank using dry ice to keep it cold, during a heat wave at the Great American State Fair on the National Mall, Thursday, July 2, 2026, in Washington. (AP Photo/Alex Brandon)

FILE - North Carolina Republican candidate for Senate Michael Whatley addresses a crowd, March 13, 2026, in Rocky Mount, N.C. (AP Photo/Chris Seward, File)

FILE - Texas Attorney General Ken Paxton, a Republican candidate for the U.S. Senate, waves as he takes the stage during a primary runoff election night event after winning the Republican party's nomination, May 26, 2026, in Plano, Texas. (AP Photo/Tony Gutierrez, File)

People listen as President Donald Trump speaks at Burning Hills Amphitheatre during the Theodore Roosevelt Presidential Library opening ceremony, Wednesday, July 1, 2026, in Medora, N.D. (AP Photo/Julia Demaree Nikhinson)

President Donald Trump walks from Marine One to board Air Force One at Bismarck Municipal Airport, Wednesday, July 1, 2026, in Bismarck, N.D. (AP Photo/Julia Demaree Nikhinson)

President Donald Trump greets supporters after arriving on a Freedom 250 train, Wednesday, July 1, 2026, in Medora, N.D. (AP Photo/Julia Demaree Nikhinson)