President Donald Trump attacked America's closest allies in tweets after leaving the meeting in Canada. A former US ambassador to Canada called on Trump trade adviser Peter Navarro to apologize for saying "there's a special place in hell" for Trudeau, whom he accused of practising "bad-faith diplomacy" at the weekend G7 summit in Quebec.
With politicians on both sides of the House supporting retaliation against penalties on Canadian steel and aluminum, John Ries, a professor with UBC's Sauder School of Business, says that might lead to US President Donald Trump backing off.
The United States has alienated Canada and other allies by imposing tariffs on steel and aluminum imports, arguing that they pose a threat to US national security.
"I know it didn't look friendly", Trump said. "He didn't do that to my face, what's this all about?'"
Though the decision comes with "regret", Trudeau said Canada would impose its measures "with absolute certainty and firmness".
Kim summit highlights: European Union hails talks as 'crucial and necessary step'
The video was also shown to a wider audience at the start of Tuesday's press conference before making the rounds on social media. In April, Kim and South Korean President Moon Jae-in had held a historic summit to bring lasting peace in the Korean Peninsula.
While making no direct criticism of Mr Trump, Mrs May told MPs: "This was a hard summit with, at times, some very candid discussions, but the conclusion I draw is that it is only through continued dialogue that we can find ways to work together to resolve the challenges we face".
Trump called Trudeau "dishonest" and "weak" in tweets following the summit on Saturday.
Trump addressed the fight with Trudeau during a press conference following the North Korea summit, suggesting average Canadians will pay the price.
Trump has called NAFTA a "one-sided deal" that is "unfair" to American farmers. "You can't do that". "Chief among them are Canada's extraordinarily high tariffs on American dairy products". For instance, Trump's steel and aluminum tariffs are expected to cause a drag on U.S. economic growth and result in a net loss of American jobs.
Trump's attacks have Canadian businesses that use aluminum and steel very anxious, said Ontario Conservative MP John Brassard, who added that there is real concern that there will be serious job implications in very short order.
Trump roiled the weekend Group of Seven meeting of industrialized nations in Canada by agreeing to a group statement on trade only to withdraw from it while flying to Asia. Trump aired grievances with each of the G7 members during the summit. During a Sunday Fox News broadcast just after the G7 wrapped up, U.S. President Donald Trump's top trade adviser Peter Navarro did not mince his words.
Trump again presented the United States as the victim of unfair trade deals during the interview with ABC on Tuesday. "I left the [G7] meeting and I'll be honest, we are being taken advantage of by virtually every one of those countries, very, very seriously", Trump said.