 More senior Democrats in the U.S. say they want Joe Biden to step aside as the party's presidential nominee. The latest defections include several House committee leaders who expressed their views in a private call organized by the House minority leader, Hakeem Jeffries. And Iran has elected a reformist president keen on restarting talks with the U.S. over the landmark 2015 nuclear deal. Massoud Poseshkin, a heart surgeon and former health minister, beat his hardline rival in a runoff vote on Friday. Those are some of our global news headlines.