Donald Trump can’t back up his claim that an ex-president supported his decision to wage war on Iran.All four living former presidents denied speaking to Trump recently, NBC News reports. A George W. Bush aide told the news outlet that “they haven’t been in touch,” and one of Bill Clinton’s aides said that Trump couldn’t have been referring to the forty-second president. Likewise, “no recent conversations” have taken place between Trump and former President Barack Obama, an aide to Obama said. An unnamed source told NBC that Trump couldn’t have been referring to Joe Biden, either.“I’ve spoken to a certain president—who I like, actually. A past president, former president. He said: ‘I wish I did it. I wish I did.’ But they didn’t do it. I’m doing it. Yeah?” Trump said about the Iran war while at a lunch for Kennedy Center board members Monday afternoon. Later, Trump said in the Oval Office that he “spoke to one of the former presidents who I actually like.”“I actually speak to some,” Trump said. “And he said, ‘I wish I did what you did.’” When Trump was asked to be specific, Trump said it wasn’t Bush, and when asked if it was Clinton, he replied, “I don’t want to say.”“I don’t want to say because a member of a party, a member of a party, they have Trump derangement syndrome, but it’s somebody that happens to like me, and I like that person, who’s a smart person, but that person said, ‘I wish I did it.’ OK, but I don’t want to get into who. I don’t want to get him into trouble,” Trump said. “You know, it’s interesting. And maybe he’d be proud. And I could even ask him that: ‘Would you like me to reveal your name?’”A former president backing Trump up on this war doesn’t even make sense. Bush rejected calls from within his Cabinet to go to war with Iran while he was president, and Obama actually negotiated a landmark deal with the country over its nuclear program. Biden avoided offensive military action during his four years in office, and Clinton last year publicly asked Trump to “defuse” tensions between Iran and Israel. Trump must be feeling some kind of insecurity or pressure over his decision to attack Iran if he’s trying to claim, without anyone going on the record, that a former president supports his reckless decision to bomb the country.