A New York Times reporter who was present at the Trudeau press conference tweeted Sunday that he didn't understand what remarks Kudlow was referring to when the economic adviser said Trudeau stabbed the U.S.in the back.
But Mr. Trudeau also said it was "kind of insulting" the US had imposed tariffs on steel and aluminum under the guise of national security, noting Canadians stood "shoulder to shoulder" with Americans in overseas wars.
Canadian Foreign Affairs Minister Chrystia Freeland, according to The Hill, responded to the backlash from the White House saying "Canada does not believe that ad hominem attacks are a particularly appropriate or useful way to conduct our relations with other countries".
What did Trudeau say to warrant Kudlow's claims?
Kudlow says Trudeau's actions were a "sophomoric play" and says the prime minister stabbed his USA allies in the back, which he argues did a great disservice to the whole G7. Meantime, Trump was already looking ahead to his meeting with Kim Jong Un with a feeling of optimism.
Navarro calls that a "socialist communique" that Trump pulled out of.
Trudeau had said Canadians "are polite, we're reasonable, but also we will not be pushed around". But, Trump's defenders today say that he is simply standing up for America.
"There's a special place in hell for any foreign leader that engages in bad faith diplomacy with President Donald J. Trump".
Mr. Trump insisted relationships with allies were a "10" just before he left the summit.
Kudlow said Trudeau had engaged in a "a sophomoric political stunt for domestic consumption" and should apologize.
Follow his statement, Trump and several of his advisors went on the attack, citing similar talking points.
Having left the G7 summit in Canada early, Mr Trump's announcement on Twitter that he was backing out of the joint communique torpedoed what appeared to be a fragile consensus on a trade dispute between Washington and its top allies. Senate Minority Leader Chuck Schumer (D-N.Y.) asked on Twitter whether the US was "executing Putin's diplomatic and national security strategy or AMERICA's diplomatic and national security strategy?"
The move enraged Trump, who branded his Canadian counterpart "dishonest and weak" in a furious tweet, announcing the U.S. would pull out of an agreed communique.
Minutes after the publication of a joint communique that was approved by Trump and other Group of Seven leaders at a summit in the city of Quebec, the USA leader announced on Twitter that he was retracting his support.