US-Iran agreement signed; key issues remain unresolved as negotiations advance

President Donald Trump and Iranian President Masoud Pezeshkian signed a U.S.-Iran agreement at the G7 summit, ending a naval blockade and allowing sanctions waivers for Iranian oil sales. The deal includes a $300 billion investment in Iran's reconstruction but leaves unresolved issues like sanctions schedules, frozen assets, and Iran's nuclear program. The agreement faces bipartisan criticism in Congress for potentially strengthening Iran and weakening U.S. allies.