Iran's Tectonic Elections

See the attached article from the National Interest. The most interesting part is not about the elections per se, but regards the possible successor to Iran's "Supreme Leader", who is apparently ill, but who ultimately calls the shots. Iran has an interesting political system -- there is a national leader, elected (more or less) by the populace, and the Supreme Leader, akin to the Communist Party Secretary in the old Soviet Union (who also wore the other hat as Premier, so the analogy isn't perfect).
The National Interest