The second son of the late supreme leader keeps a low profile. But he's long been viewed as wielding his power behind the scenes, from crushing dissent to influencing presidential elections.

Prior to Mojtaba's appointment, Trump called him an "unacceptable" choice and a "lightweight."

Mojtaba Khamenei built influence under his father as a senior figure tied to Iran’s security forces and the vast business empire they control.

Did President Donald Trump post, "Mojtaba Khamenei are you ready to meet your father?" No, that's not true: The fake post did not come from the president's official Truth Social account. While Trump