Sen. Mitt Romney warned that a second term with Donald Trump as president could upend the NATO alliance. “I think if President Trump were to return as president that the nations of the world would say that they really have to rethink their own national security and the extent to which they want to be aligned with us and instead be aligned with someone else,” Romney told Kasie Hunt in an interview for CNN+ released Tuesday. Asked if Trump permanently damaged NATO, Romney — one of the few prominent Republicans willing to speak against Trump — said the former president’s America-first approach “frightens other members.”

See omnystudio.com/listener for privacy information.