The sudden death of Iranian President Ebrahim Raisi in a helicopter crash plunges Tehran into fresh uncertainty at a time when it already faces deep economic decline, popular discontent and war. The helicopter carrying President Raisi suffered a hard landing on Sunday while returning from Azerbaijan in poor weather conditions, Iranian state media reported Monday. Iran’s foreign minister, Hossein Amirabdollahian, also died in the accident. All eyes are now on what comes next for the Middle...