From Fox News:
President Donald Trump said on Tuesday if Iran carries out his assassination, advisers will ensure that country is “obliterated.” While signing an executive order imposing maximum pressure on Tehran, the president said he left instructions if something were to happen to him.
“That would be a terrible thing for them to do,” Trump said. “If they did that, they would be obliterated. That would be the end. … There won’t be anything left.” The Justice Department confirmed in November it thwarted an Iranian plot to kill Trump in the weeks leading up to the presidential election.