“I found it beneath America, the way that took place,” he said of Trump and Zelenskyy’s meeting. “And the way we talk about now that, ‘it’s the Gulf of America’, ‘maybe we’re going to have to take back Panama’, ‘maybe we need to acquire Greenland, ‘maybe Canada should be a [51st state].’

Exclusive: The former president tells Nick Robinson his verdict on his successor's first 100 days and his "grave concern" for the future of the Atlantic Alliance

The former president stepped up his public presence by slamming President Trump’s handling of foreign policy and defending his own decision to seek re-election.