Today: The American political activist Charlie Kirk has been murdered on a Utah campus, with police now questioning a person of interest—extending a recent pattern of U.S. political violence across party lines. Poland and its allies shoot down Russian drones in NATO’s first engagement since the start of the war in Ukraine. A group affiliated with the Islamic State massacres 60 people at a funeral in Congo. & The U.S. Supreme Court has backed the Trump administration’s foreign-aid freeze.