The helicopter crash that killed Iran’s president Ebrahim Raisi and foreign minister Hossein Amir-Abdollahian will not fundamentally change the Islamic Republic. Ayatollah Ali Khamenei, the 85-year-old supreme leader, remains the constitutional commander-in-chief and is still in charge of strategic decision-making in the country. But Raisi being removed from the scene has the potential to scramble the politics of succession in Iran.