Israel and Iran are waging an existential battle. What does it mean for the US?: ANALYSIS When did Khamenei come to power?

Calling out Trump directly, the Supreme Leader added: “The U.S. President threatens us. With his absurd rhetoric, he demands ...

As President Donald Trump and Iran's supreme leader Ayatollah Ali Khamenei trade threats, here's what to know about the ...

The cleric has ruled for more than three decades, spearheading a policy of backing proxy groups to wield influence across the ...

Iran's supreme leader warned the U.S. would face "irreparable damage" if it joined Israel's conflict with Iran. Who is ...

Ayatollah Ali Khamenei has spent almost four decades as Shi'ite Iran's supreme leader building a regional power to rival the ...

Ayatollah Ali Khamenei rejected President Trump's demand for unconditional surrender, as Iranians jammed the highways out of ...

Iranian Supreme Leader Ali Khamenei may be attempting to activate terrorist “sleeper cells” across the West as he repeatedly ...

Israel said it had struck uranium enrichment sites in Iran after the two countries launched another barrage of missiles at ...

In an ABC News exclusive, Israeli PM Benjamin Netanyahu speaks with Jon Karl about the conflict with Iran -- and says he's not ruling out taking out Iran's supreme leader, Ali Khamenei.

Iran's Supreme Leader, Ayatollah Ali Khamenei, governs Iran for all practical purposes, as he is the head of state, the ...

Iran 's Supreme Leader, Ali Khamenei, is reportedly hiding in an underground bunker with his family. The Ayatollah is said to ...