In the Buckingham Palace video, Mr. Trudeau is seen gossiping with French President Emmanuel Macron and British Prime Minister Boris Johnson about Mr. Trump's penchant for long, rambling press conferences.
"And honestly with Trudeau he's a nice guy. the truth is I called him out on the fact he's not paying 2 percent [in funding NATO] and I guess he's not very happy about it", Trump said.
What did the leaders' joint statement say?
George Conway criticized Trump for being the "laughingstock" of the world after a video surfaced showing world leaders seemingly mocking the president.
Recep Tayyip Erdoğan, Turkey's president, went into the North Atlantic Treaty Organisation summit in London warning that he would veto plans to bolster forces in Poland and the Baltics unless the alliance designated the Kurdish People's Protection Units (YPG) as terrorists.More news: Qatar placed in Group B at Copa America 2020
Trump's public appearance with Trudeau lasted more than half an hour and included questions about China and the impeachment process and also saw the Canadian prime minister trying to deflect questions from the USA president about Canada's defence spending.
"Well, he's two-faced", Trump said. "It's Canada. They have money and they should be paying two per cent".
Earlier yesterday, some of the most powerful people on the planet gathered at Buckingham Palace for an event hosted by Queen Elizabeth, as part of the Nato Summit taking place in London, news.com.au reports.
Those three countries have been at odds on a number of fronts, with French President Emmanuel Macron voicing frustration over a lack of co-ordination and communication within the alliance, as exemplified by American and Turkish actions in Syria.
"He's not paying 2 percent and he should be paying 2 percent".
In September 2018, some members of the U.N. General Assembly laughed aloud when Trump used his address to claim his administration had accomplished more in fewer than two years than nearly any administration in US history.More news: Cardi B Responds to Offset Cheating Rumors Amid Instagram Hack
The leaders of the world's most powerful military alliance clashed over personality and policy on Wednesday as NATO's summit ended with an effort to paper over their sharp divisions. Trump called Macron's comments "very, very nasty" and "insulting".
In recent weeks Macron has tried to shake up the agenda by demanding a review of alliance strategy, but Trump - who arrived boasting that he had forced members to boost defence spending - hit back hard.
On the second day of the summit, Trump is scheduled to meet with German Chancellor Angela Merkel, and the prime ministers of Denmark and Italy.
"That's complete nonsense", he said, adding: "I really don't know what is being referred to there".More news: Indian Idol 11: It's OFFICIAL! Himesh Reshammiya Replaces Anu Malik As Judge