A supporter reacts to first results after polls closed during a primary election night event for U.S. Sen. Edward Markey, D-Mass., Tuesday, Sept. 1, 2026 in Boston. (AP Photo/Charles Krupa)

A parent walks his daughter in a schoolyard on the first day of the new school year, amid the Ebola virus outbreak, in Ituri, Congo, Tuesday, Sept.1, 2026. (AP Photo/Dieudonne Dirole)

Students attend a school assembly on the first day of the new school year amid the Ebola virus outbreak, in Ituri, Congo, Tuesday, Sept.1, 2026. (AP Photo/Dieudonne Dirole)

Students attend a school assembly on the first day of the new school year amid the Ebola virus outbreak, in Ituri, Congo, Tuesday, Sept. 1, 2026. (AP Photo/Dieudonne Dirole)

U.S. Rep. Seth Moulton campaigns outside Cary Hall, the town hall and polling place in Lexington, Mass., Tuesday, Sept. 1, 2026. (Lauren Feeney/Lexington Observer via AP)

Attorney Jeffrey Hunt speaks with 4th District Court Judge Tony Graf during a preliminary hearing for Tyler Robinson, the Utah man accused of fatally shooting Charlie Kirk, in 4th District Court in Provo, Utah, Tuesday, Sept. 1, 2026. (Francisco Kjolseth/The Salt Lake Tribune via AP, Pool)

Tyler Robinson, left, charged in the fatal shooting of Charlie Kirk, speaks with defense attorney Staci Visser as he attends a preliminary hearing in 4th District Court in Provo, Utah, Tuesday, Sept. 1, 2026. (Francisco Kjolseth/The Salt Lake Tribune via AP, Pool)

Britain's Prime Minister Andy Burnham leaves 10 Downing Street, London, Tuesday, Sept. 1, 2026. (Stefan Rousseau/PA via AP)