'Regime change'? The Iranian leaders killed in Israeli-US war

Since the start of the war, US-Israeli airstrikes on Iran have killed supreme leader Ali Khamenei and a whole echelon of the political and military elite in the Islamic republic.US President Donald Trump said Sunday that the war had achieved regime change and that we're dealing with different people than anybody's dealt with before.But several key figures have survived and the Islamic republic has shown resilience in rapidly replacing killed leaders and also keeping up the war against the US and Israel.