Mojtaba Khamenei, 56, has been named Iran's new supreme leader, inheriting a sprawling security apparatus his father transformed from a religious affairs office into a national security juggernaut. The younger Khamenei, already considered the 'mini supreme leader' during his father's 37-year rule, now controls an office with 4,000 employees and 40,000 affiliates across government ministries.

His father, Ayatollah Ali Khamenei, consolidated power through the security services and his Bayt-e Rahbari (House of the Supreme Leader), creating mirror offices in every government ministry to ensure policies aligned with his wishes. The office now oversees military, intelligence, economic, and foreign affairs operations. President Trump, who sanctioned the supreme leader's office in 2019, expressed disappointment at the appointment, suggesting it signals more of the same problems.

Analysts note Mojtaba Khamenei's deep ties to the Islamic Revolutionary Guards Corps, having vetted recent commanders and served in a noncombat role during the Iran-Iraq war. The appointment marks Iran's evolution from a theocratic regime to what experts call a 'theocratic security system' under the elder Khamenei, now moving toward a 'more complete security state' under his son. The younger Khamenei, a mid-ranking cleric, lacks the religious credentials of traditional supreme leaders, suggesting his rule will emphasize security ties over religious authority.