US President Donald Trump vetoed an Israeli plan, presented to the US, to kill Iran's Supreme Leader Ayatollah Ali Khamenei, according to a US official.The Israelis informed the Trump administration in recent days that it had developed a credible plan to kill Mr Khamenei.After being briefed on the plan, the White House made clear to Israeli officials that Mr Trump was opposed to the Israelis making the move.The Trump administration is desperate to keep Israel's military operation aimed at decapi

US President Donald Trump vetoed an Israeli plan, presented to the US, to kill Iran's Supreme Leader Ayatollah Ali Khamenei, according to a US official.The Israelis informed the Trump administration in recent days that it had developed a credible plan to kill Mr Khamenei.After being briefed on the plan, the White House made clear to Israeli officials that Mr Trump was opposed to the Israelis making the move.The Trump administration is desperate to keep Israel's military operation aimed at decapitating Iran's nuclear program from exploding into an even more expansive conflict and saw the plan to kill Mr Khamenei as a move that would enflame the conflict and potentially destabilise the region.