“At the NATO summit in 2018, Trump came very close to withdrawing from NATO right there at the summit. So each of these comments, as he makes them now over six years, to me simply reinforces that the notion of withdrawing from NATO is very serious with him. People say, ‘Well, he’s not really serious.
He’s negotiating with NATO.’ Look, I was there when he almost withdrew, and he’s not negotiating — because his goal here is not to strengthen NATO, it’s to lay the groundwork to get out.”— Former Trump national security adviser John Bolton, quoted by Politico.