Former U.S. ambassador John Bolton, a onetime national security adviser to President Trump, tells “On Balance” it would be a mistake for the U.S. to sign off on any supreme leader in Iran that is selected by the current regime. “What we need to do is pull the Revolutionary Guard apart, pull the ayatollahs apart, pull the regime apart at the top,” Bolton said. #Iran #Trump #JohnBolton "On Balance with Leland Vittert" takes a critical look at some of the day's hottest subjects. Weekdays at 9p/8C. #OnBalance NewsNation is your source for fact-based, unbiased news for all Americans. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij