"I have made it clear to [President Trump] that it is not something we relish doing, but it is something that we absolutely will do", Trudeau said. "Let us be serious and worthy of our people".
Trump has repeatedly threatened to pull out of NAFTA if the agreement is not renegotiated in way that he views as more favorable for US companies and workers.
Trump swiftly responded to Trudeau by upending the communiqué in a series of tweets Saturday evening.
Those tensions boiled over during the G7 summit in Canada on Saturday, with Canadian Prime Minister Justin Trudeau and European leaders reaffirming plans to institute retaliatory measures and Trump lashing out in response by refusing to endorse the group of industrialized nations' communique. "Take down your tariffs & barriers or we will more than match you!" "We used fact-based arguments".
Trump was travelling from North America to Asia when he withdrew from a Group of Seven economic statement and insulted Canadian Prime Minister Justin Trudeau as "dishonest" and "weak".
After President Trump left, from Air Force One, he rage-tweeted an attack on Canadian Prime Minister Justin Trudeau, and announced the USA was revoking its agreement to accept the joint statement of the G-7 members.
Trump took aim at an unspecified news release issued by Canada saying, "they made nearly 100 bln dollars on trade with u.s. (guess they were bragging and got caught!)".
At a rare solo news conference before heading to Asia, Trump said he pressed for the G-7 countries to eliminate all tariffs, trade barriers and subsidies in their trading practices.
"What's not in good faith is when you leave there, you fly out of there, and the host Canadian prime minister starts taking whacks at you, pot-shots at you - on the eve of this Korean summit", Kudlow said.
"We won't allow ourselves be ripped off again and again".
In the weeks leading up to the summit, he imposed tariffs on steel and aluminum from Canada, Mexico, and the European Union. We'd have a deal, we'd have a great deal with NAFTA, by now, if the Canadians would spend more time at the bargaining table and less time lobbying Capitol Hill and our press and state governments here, they are just simply not playing fair. "Tariffs will come way down", Trump said. "And that ends", Trump said. The tariffs, which also take effect July 1, will last until the USA ends its trade action.
Trade adviser Peter Navarro told "Fox News Sunday" that "there is a special place in hell for any leader that engages in bad faith diplomacy" with Trump.
Mr. Kudlow said Mr. Trudeau "busted up" the G-7 summit with his remarks - even if they were designed for domestic consumption in Canada, and though Mr. Trump is known for making strident comments in other settings.
Trump, en route to Singapore, called Trudeau's news conference "very dishonest & weak" following his tweet ahead of the G7 summit calling Trudeau "indignant".