 Dates over the U.S. president's future are threatening to overshadow the NATO summit that begins today in Washington. Joe Biden's hosting the gathering, but other leaders, including Emmanuel Macron and Olaf Scholz, are also facing pressure after recent elections in their countries. And the U.N. Security Council will meet later today to discuss an airstrike on a children's hospital in Kiev. Ukrainian officials say more than 36 people were killed in a barrage of missiles on Ukrainian cities. Those are some of our global news headlines.