According to Trudeau, he told the president that Canadians may be polite and reasonable but they will not be pushed around and that his nation doesn't "relish" putting tariffs on US goods and services but is willing to do so.
Ontario premier-designate Doug Ford is also among those setting aside his political differences with Trudeau, re-asserting today that he stands "shoulder to shoulder" with the prime minister on trade.
Krishnamoorthi, who represents Illinois' 8th District, said Trudeau's comments will only hurt the long-term relationship between the United States and Canada.
Trump swiftly responded to Trudeau by upending the communiqué in a series of tweets Saturday evening.
And Roland Paris, a former foreign policy adviser to Trudeau, jabbed Mr. Trump on Twitter: "Big tough guy once he's back on his airplane".
Kudlow also said Trump wasn't going to let Trudeau push Trump around.
The statement that Trump reneged on was also signed by the heads of government of Britain, Canada, France, Germany, Italy and Japan, all of which have also been hit by the USA tariffs of 25 percent on imported steel and 10 percent on aluminum.
"Our Tariffs are in response to his of 270% on dairy!" the US president tweeted.
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Trump fired back after Trudeau's press conference, blasting the Canadian leader on Twitter as "very dishonest and weak". Trudeau stuck our president in the back.
This is both unprecedented language, in modern times, to use against Canada's leader and part of an ongoing pattern of behaviour with Trump.
Bruce Heyman, a former USA ambassador to Canada, said he feared that Mr. Trump is deliberately setting the stage to start the process of pulling the United States out of NAFTA by "setting up a narrative" that Canada is cheating America.
What did Trudeau say to warrant Kudlow's claims?
However, former USA ambassador to Canada Jim Blanchard said the auto sector in the US won't tolerate this threat of more trade action, saying that both that industry and American farmers want to see a renewed trade relationship with Canada.
Trump's conduct was "actually not a real surprise, we have seen this with the climate agreement or the Iran deal", Maas, a senior member of the Social Democrats (SPD), a partner in Chancellor Angela Merkel's governing coalition, told reporters.
The group of seven nations that make up the G7 are Canada, France, the United States, the UK, Germany, Japan and Italy.
"Canadians are polite and reasonable but we will also not be pushed around", he said.
G7 allies seemed as perplexed as Canada at the sudden diplomatic row, and Germany and France accused Mr Trump of destroying trust and acting inconsistently.