Speaking at his closing news conference, Trudeau says the G7 has agreed to an "ambitious" communique - but he did not immediately release a document or provide details of where the exclusive club of wealthy democracies found common ground. "These days, who doesn't wear fake eyebrows?" Trump refused to sign a previously-negotiated joint statement written by all seven countries, prompting French President Emmanuel Macron to say in a statement Sunday that "International cooperation can not be dictated by fits of anger and throwaway remarks ..." Conspiracy theories, jokes and memes started bubbling up after the Canadian Prime Minister's eyebrows appeared uneven during his press conference with French president Emanuel Macron.
Trump's closest advisers added to the attack during televised interviews on Sunday. "Least of all from subordinates of the president directed at the prime minister of their greatest friend and ally", he said.
Kudlow said the US and Trump was prepared to sign the G-7 communique drafted during the meeting until Trudeau "stabbed them in back" and made Trump look weak as prepared to meet with North Korean leader in Singapore.More news: Volvo launches Polestar Engineered performance pack
Kudlow accused Trudeau of "pouring collateral damage on this whole Korean trip". Trudeau made an error.
Trump adviser Peter Navarro, meanwhile, said Tuesday he made a mistake when he said "there's a special place in hell" for Trudeau.
Freeland said of the U.S. tariffs, "The national security pretext is absurd and frankly insulting to Canadians, the closest and strongest ally the United States has had".
The prime minister responded by remaining above the fray. "It is even more important that Europe stands together and even more aggressively represents its interests".
"It is not something we relish doing, but it is something that we absolutely will because Canadians, we're polite, we're reasonable, but we also will not be pushed around", Trudeau said.More news: David and Victoria Beckham shut down divorce rumours with official statement
In his earlier interview, Kudlow said he personally negotiated with Trudeau during the two-day G7 summit in Quebec and insisted the US agreed to the language in the communique in good faith.
Before his departure from Canada the previous day, he tweeted: "Based on Justin's false statements at his news conference, and the fact that Canada is charging massive Tariffs to our US farmers, workers and companies, I have instructed our US Reps not to endorse the Communique as we look at Tariffs on automobiles flooding the US Market!"
"It's a betrayal, essentially a double-crossing", Kudlow said. "They have tariffs on certain dairy and food products - 290 [to] 295 percent".
However, the office of the U.S. Trade Representative has said the United States ran an $8.4 billion trade surplus with Canada in 2017.
He also announced over Twitter he'd instructed US officials to not endorse the statement, which serves as a declaration and recap of what was decided in the meeting.More news: Black Ops 3 is a bonus free game on PlayStation Plus
And Roland Paris, a former foreign policy adviser to Trudeau, jabbed at Trump on Twitter: "Big tough guy once he's back on his airplane".