Trudeau's remarks have enraged U.S. President Donald Trump, who tweeted hours later that he had instructed U.S. representatives not to endorse the G7 joint communique "based on Justin's false statements at his news conference, and the fact that Canada is charging massive Tariffs to our U.S. farmers, workers and companies".
He followed up by tweeting: "PM Justin Trudeau of Canada acted so meek and mild during our @G7 meetings only to give a news conference after I left saying that, "US Tariffs were kind of insulting" and he "will not be pushed around".
The president went into the meeting under intense pressure from foreign leaders after he slapped high tariffs on steel and aluminum imports, citing US national security needs.
President Donald Trump's fight with Canadian Prime Minister Justin Trudeau not only threatens to unravel the US's relationship with one of its oldest global partners - it could also significantly damage the U.S. economy.
In urging Trudeau to apologize for his comments, he also said the prime minister's statements were a "diplomatic betrayal" as Trump headed to Singapore to his high-profile summit with North Korean leader with Kim Jong-un.
"We're allies", Pallister said of Canada and the U.S.
Trump also said he might double down on import tariffs by hitting the sensitive auto industry, throwing the G7's efforts to show a united front into disarray.
The tariffs, as well as Trump's noted opposition to multilateralism, his criticism of Canadian trade barriers and suggestion that the union become the G8 with the inclusion of Russian Federation made for a chaotic lead into the G7 summit. Mexico, Canada, China and others have treated them unfairly.More news: YEP says: Birthday honours for ordinary folk mean so much
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The president's latest tirade comes after a war of words erupted between the USA and its G7 allies following Mr Trump's decision to reject a joint communique at the end of a tense summit in Quebec on Saturday.
Describing the USA tariffs on European steel and aluminium as "unjustified", she left no doubt that EU nations would impose counter-measures on United States goods in response but cautioned against tit-for-tat retaliation which might lead to a trade war. "And that's what bad faith Justin Trudeau did with that stunt press conference". I'm wondering, though, if you could square that with the comments that President Trump made as he was leaving, that the USA has been taken advantage of for decades.
Canadian Foreign Minister Chrystia Freeland spoke against the United States over its tariffs on steel and aluminum on Friday during the summit.
"The communique was agreed by all the parties who attended the G7 and we fully intend to honour it", the spokesman said.
"This week started with @realDonaldTrump boosting a Chinese company identified as a national security threat to the U.S. It ended with him standing up for Russian Federation and alienating our allies at the G7".
He added that EU Commission President Jean-Claude Juncker thanked Trudeau "for the excellent preparation and chairing of this challenging summit". Pre-summit reports from the White House suggested that the president even considered skipping the summit altogether.
The outburst against Trudeau, and by association the other G7 members, is only the latest incident in which Trump has clashed with America's closest allies, even as he has had warm words for autocrats like Kim and Russia's Vladimir Putin. "Using that type of language is not professional, it's not called for, and I tell you, I was deeply disappointed to see this lack of professionalism on his part".
"[Trump] wants to move all of that manufacturing back to the States, [but] we don't have people to actually do this work", Heyman said.