Nearly every Senate Democrat demanded an investigation into U.S. airstrikes that killed about 175 children at an Iranian girls’ school on February 28, 2026.

Nearly every Senate Democrat urged a swift investigation into U.S. airstrikes on an Iranian girls’ school on February 28 that killed about 175 children, with U.S. military officials believing U.S. forces were likely responsible during joint operations. The letter to Defense Secretary Pete Hegseth sought answers on responsibility, civilian protection measures, and AI’s role in targeting, with only Senator John Fetterman of Pennsylvania not signing. Fetterman defended his decision, stating the Pentagon had already acknowledged involvement and that he supported the military campaign, criticizing media coverage and Iran’s prior actions. Republicans backed President Trump’s Iran strategy and did not join the call for an investigation.