For more than three decades, the Bayt-e Rahbari (also referred to as the Bayt), has been the single most important entity in the Islamic Republic’s policymaking

Despite its centrality and frequent references by Iranian observers, there is remarkably little public information about this secretive and complex institution and relatively little scholarly attention to it.

Economically, the Bayt controls almost all aspects of Iran's economy. Starting in 2003, the Bayt began to play an active political role in engineering election outcomes, not least facilitating Mahmoud Ahmadinejad’s rise to the presidency two years later

The Bayt has been intentionally organized and structured like a dark and tangled web, complex in design and opaque in its workings.

While some observers interpreted Khamenei’s limited public presence after the 12-day war with Israel as a sign of a looming power vacuum, in reality, it underscored something very different. The Bayt ensures that the supreme leader’s dominance is not dependent on his physical presence.

This structure — layered, opaque, and entrenched — makes the Islamic Republic uniquely resilient to external and internal shocks. It's not Khamenei the man, but the Bayt as an institution, that provides durability and continuity.

For any meaningful change to occur in the Islamic Republic—including regime change—the Bayt and its apparatus must be significantly weakened