Trump said he chose to back out of the G7 communique after watching Trudeau's closing summit news conference, at which he warned that Canada would not be pushed around on tariffs - a point the Canadian prime minister had made several times before.
In Singapore, Trump announced that the USA would halt certain military drills with South Korea, while Kim committed to vague promises to ramp down the North Korean nuclear program.
At a news conference in Singapore, the president said Trudeau only made his comments about not being bullied because he thought Trump was on an airplane and would not hear about them. "I've been called worse things by better people", the elder Trudeau replied.
He said in a press conference that it was his mistake that he used such a language as he wanted to send an important message to the G7 members.
Kudlow later suffered a "very mild" heart attack, the White House said Monday, but was in good condition.
"In the short term, we quarrel from time to time and certainly this is one of those quarrelsome moments", Tousignant said, recalling that Pierre Elliott Trudeau, the current prime minister's late father, had his own issues in 1971 with then-president Richard Nixon, who famously referred to the elder Trudeau as an "asshole".
"On (Trump's) comments, I'm going to stay focused on defending jobs for Canadians and supporting Canadian interests".
U.S. President Donald Trump's sharp comments against Canada over trade are just a blip in an otherwise unbreakable, long-standing friendship, say some Americans living in the northeastern part of the country near the Canadian border.
But Trump himself couldn't seem to let go of his annoyance with Trudeau, even as he celebrated signing a historic de-nuclearization agreement with North Korea.
Mr. Trump has threatened to bring down a 25-per-cent tariff on all Canadian-made cars and trucks, which would hit four times more exports and jobs than the metals tariffs.
"Based on Justin's false statements at his news conference, and the fact that Canada is charging massive Tariffs to our U.S. farmers, workers and companies, I have instructed our U.S. Reps not to endorse the Communique as we look at Tariffs on automobiles flooding the U.S. Market!" And I say, 'Push him around?
But Trudeau's Office said in a statement that the Canadian prime minister has been consistent with Trump both in public and private conversations.
Freeland said she had a "good conversation" Sunday with US Trade Representative Robert Lighthizer, and that the pair would try to meet in Washington this week.
One particular source of his ire recently has been Canada's supply management system, which levels tariffs of up to 300 per cent on imported dairy products.
Then, he went on about how massive trade surpluses were not fair to the American people and how the United States pays almost the full cost of North Atlantic Treaty Organisation which protects "many of these same countries that rip us off on Trade" and remarked, "Change is coming". "And in fact the picture with Angela Merkel, who I get along with very well, where I'm sitting there like this. we're waiting for the document because I wanted to see the final document as changed". Trump tweeted Saturday evening while en route to Singapore aboard Air Force One.
Foreign Affairs Minister Chrystia Freeland, who will be in Washington on Wednesday and Thursday, is hoping to meet with USA trade czar Robert Lighthizer to resume discussions on modernizing the North American Free Trade Agreement. According to the Office of the United States Trade Representative, the US had an $8.4 billion trade surplus with Canada, but a $17.5 billion trade deficit if services were excluded.
Former Conservative cabinet minister James Moore, a member of the government's advisory group on NAFTA, hailed Trudeau's approach, refusing to react to "the noise, the bluster, the Twitter, the emotional outbursts". "Canadian relations to have this kind of rhetoric out there", said Klein, who will soon turn 80.
In New Hampshire, which counts Quebec as its largest trading partner and where almost a quarter of the population has French-Canadian roots, Tousignant doesn't believe a few undiplomatic words will do much to sour relations between "cousins".