A pygmy hippopotamus wallows in the water in their enclosure at the Franklin Park Zoo in Boston to cope with the hot weather conditions, Thursday, July 2, 2026. (AP/Michael Casey)

A man plays Frisbee with friends in the Sheep Meadow of New York's Central Park, Thursday, July 2, 2026. (AP Photo/Richard Drew)

A man takes advantage of a sprinkler during hot weather in New York's Central Park, Thursday, July 2, 2026. (AP Photo/Richard Drew)

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)