Trudeau had said Canadians "are polite, we're reasonable, but also we will not be pushed around".
"Well, he holds a press conference and he says the U.S.is insulting".
"We are, by-and-large, integrated because we have common values and common legal systems and common strategic objectives", he said.
In a mocking tone, Kudlow rattled off the reasons Trudeau offered for his barbed critique of Trump's policies.
"One of the arguments was that the president can't show weakness and what Trudeau did required this robust response otherwise the president would appear to be weak", Hayden said. He had other things, bigger things on his plate in Singapore, he said.
Trump swiftly responded to Trudeau by upending the communiqué in a series of tweets Saturday evening.
But unity was torn apart when the USA president took exception to Mr Trudeau calling USA policy "insulting". Trudeau stuck our president in the back. "That will not stand", he noted. As President Trump has often complained, they have their own tariffs and subsidies to protect powerful domestic constituencies and special interests, despite professing their commitment to free trade in high-minded terms.
Larry Kudlow calls Justin Trudeau's verbal attacks 'amateurish,' a 'betrayal'
The calamitous summit ended in disarray after Trump broadsided his allies by disavowing a joint statement the U.S. had agreed to. Trump fired back after Trudeau's press conference, blasting the Canadian leader on Twitter as "very dishonest and weak ".
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Putin says ready to meet Trump 'as soon as' Washington is ready
If the G-7 were to expand, it should include India and Brazil, both democracies that have larger economies than Russia's. He adds Moscow will continue to honor its obligations under the Iranian nuclear deal.
Now the US, Canada and Mexico are renegotiating the NAFTA agreement which Trump had earlier deemed to be unfair for the US. "We have seen this with the climate agreement or the Iran deal".
Canadian Foreign Minister Chrystia Freeland had responded to the White House comments by saying that Canada will retaliate to United States tariffs in a measured and reciprocal way and that Canada will always be willing to talk.
The United States has imposed 25 per cent tariffs on steel from Canada, Mexico and the European Union, and 10 per cent tariffs on aluminum.
June 6 - Trudeau tells Global National that he's "disappointed" at the reasoning behind Trump's tariffs, saying he doesn't understand "in what universe" a long-time ally of the USA could be considered a national security threat.
"The G7 and continued war of words also increase the likelihood that the 232 steel and aluminum tariffs remain in place, the Mexico/Canadian retaliation tariffs will go live later this summer, and Trump is likely to threaten a counter-retaliation", he said. I mean we have China where this is completely different because tariffs are a national security issue.
Last week, Canada hit back at the Trump administration by announcing retaliatory tariffs on up to 16.6 billion Canadian dollars (12.8 billion USA dollars) worth of US steel and aluminum as well as a diverse list of other products.
The August gold contract was up US$2.20 to US$1,304.90 an ounce and the July copper contract was down four cents to US$3.26 a pound.
But in brief remarks to reporters before their bilateral meeting Friday afternoon, Trump seemed to lighten the mood, cracking a joke about Canada dropping all tariffs and claiming that relations between the two countries were perhaps better than they had ever been.
Pledging to uphold the rules-based order, she said disputes could not be solved by nations taking "unilateral action against their partners".