Mojtaba Khamenei, Iran’s supreme leader, has stepped into one of the most powerful positions in the Islamic Republic after years of operating largely behind the scenes.

Mojtaba Khamenei, Iran’s supreme leader, has stepped into one of the most powerful positions in the Islamic Republic after years of operating largely behind the scenes.

A meeting in a car and rumours of sickness shed light on the shifting role of a leader whose authority was previously indisputable