Iran-US war latest: Trump says just ‘one shot’ can take out all Iranian leaders as thousands gather at Ali Khamenei’s funeral

US president Donald Trump said that he was surprised to see thousands mourn former supreme leader Ali Khamenei, and that just "one shot" could take out all the regime's leaders who've assembled at the funeral. “They are all there. One shot and we can take them all out, but we are not going to do…