The victory by Raisi also showed the determination of Iran’s conservative establishment, including its security and intelligence agencies, to eliminate any political challenge at a critical moment, analysts said. Among the potential landmark moments ahead: reckoning with who would succeed the 82-year-old supreme leader, Ayatollah Ali Khamenei, who is seen as a mentor to Raisi. Some experts speculated about whether the return to unity at the top — Khamenei’s ruling clerics and the political structure around Raisi — could become a permanent fixture in Iran and the country’s relatively vibrant election contests could be a thing of the past. For Friday’s election, most moderates were barred by the ruling establishment, leaving many voters frustrated and turnout apparently low.