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

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

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 ...

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

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

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

Khamenei’s sinister message comes hours after the Islamic Republic’s state media also warned of a “surprise” on Tuesday night into Wednesday that the “world will ...

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 ...

Al-Jazeera reports that Iran "will stand firm against an imposed war, just as it will stand firm against an imposed peace", according to Iranian Supreme Leader Ali Khamenei in a televised address last ...