US policy of maximum pressure will fail says Iran’s Supreme Leader Ayatollah Khamenei TEHRAN: Iran’s supreme leader Ayatollah Ali Khamenei on Tuesday ruled out negotiations with the US, as tensions mount between the arch-foes after Washington blamed Tehran for attacks on Saudi oil installations. “The policy of ‘maximum pressure’ against the Iranian nation is worthless and all Islamic Republic of Iran officials unanimously believe there will be no negotiations with the US at any level,” he said, quoted on his official website.