In Iran the supreme leader is the heart of a complex power-sharing theocracy and has final say over all matters of state.

Ayatollah Ali Khamenei, who assembled theocratic power in Iran over the decades as its supreme leader and sought to turn it into a regional powerhouse, has been killed in U.S. and Israeli strikes.

Iran's Supreme Leader Ayatollah Ali Khamenei has been killed. He was 86 years old. Khamenei was unwavering in his steadfast antipathy to the U.S. and Israel.

Ayatollah Ali Khamenei played an important role in the movement that overthrew Shah Mohammad Reza Pahlavi in the 1979 ...

The 36-year rule of Ayatollah Ali Khamenei built Iran into a powerful anti-U.S. force, while using an iron fist to crush ...

Iran's Supreme Leader Ayatollah Ali Khamenei has been killed. He was 86 years old. Khamenei was unwavering in his steadfast antipathy to the US and Israel.

For 36 years he fused theology and force, empowering the Revolutionary Guards and steering Iran into confrontation abroad and ...

US President Donald Trump warned that Iran’s supreme leader should be “very worried,” as both sides prepare for their first formal negotiations since the United States bombed Tehran’s nuclear program ...

WASHINGTON − President Donald Trump said Iran's supreme leader, Ayatollah Ali Khamenei, should be worried about a U.S. military building up in the region, and hinted at a new round of strikes if ...

CAIRO (AP) — Iran's Supreme Leader Ayatollah Ali Khamenei crushed the protests that swept across the country last month, but only by unleashing the bloodiest crackdown of his nearly four decades in ...

President Donald Trump said Iran's supreme leader should be "very worried" at the moment as tensions between the U.S. and the Islamic Republic continue to escalate. "NBC Nightly News" anchor Tom ...