Trump aides accused Trudeau of betrayal of Trump for his statement on retaliation.
But foreign minister Chrystia Freeland said, "Canada does not believe that ad hominem attacks are a particularly appropriate or useful way to conduct our relations with other countries".
"According to a Canada release, they make nearly 100 Billion Dollars in Trade with United States (guess they were bragging and got caught!)".
Addressing reporters in Singapore ahead of Trump's summit Tuesday with North Korean leader Kim Jong Un, Pompeo said he was "unconcerned" that Trump's treatment of Canada - a close ally - boded poorly for his ability to forge peace with a longtime USA adversary.
"It is not something we relish doing, but it is something that we absolutely will because Canadians, we're polite, we're reasonable, but we also will not be pushed around", Trudeau said.
Earlier that day, Trump also tweeted: "Please tell Prime Minister Trudeau and President Macron that they are charging the USA massive tariffs and create non-monetary barriers". The European Union, he added "should pay much more for Military!"
Photographers captured images of the tension between Trump and other world leaders, including one in which French Prime Minister Emmanuel Macron gripped Trump's hand so tightly that he left an imprint.
Officials from European delegations quickly leaked copies of the joint statement, and it was published online moments before Trump tweeted. A senior U.S. administration official said that Trump had been angered by Trudeau's comments. But the summit host, Trudeau, whose nation was among those singled out by Trump, pushed back and said he would not hesitate to retaliate against his neighbor to the south.
She said: "We won't let ourselves be ripped off again and again".
The president has imposed tariffs on steel and aluminum imported from Europe, Canada and Mexico, fueling fears of a trade war as a number of countries mull retaliatory measures. We spent two days obtaining a draft and commitments.
White House takes up fight against 'back-stabbing' Trudeau
"We commit to modernize the WTO to make it more fair as soon as possible". "But we say that with great sadness". The Kremlin has denied allegations by the United States and some European countries that Russian Federation interfered in their elections. "When I'm telling them, they're smiling at me".
"Just so you know, yes it's true". While Russia is an important interlocutor when it comes to security questions in Europe and the Middle East, there's no justification for it to join the forum, the chancellor said, adding she "wasn't convinced" by Trump's arguments. The document also supports strong health systems, advancing gender equality, ending sexual and gender-based violence, as well as efforts to create a more peaceful world and combat climate change.
Trudeau hasn't responded directly to Trump and White House advisers' insults, instead touting on Twitter Sunday morning the accomplishments of the summit and the goals of the G7 communique Trump ditched.
Also in response, Larry Kudlow, director of the White House's National Economic Council, said on Sunday in an interview with CNN that Trudeau betrayed Trump with "polarizing" statements on US trade policy.
"There is a special place in hell for any for leader that engages in bad faith diplomacy with President Donald J. Trump and then tries to stab him in the back on the way out the door and that's what bad-faith Justin Trudeau did with that stunt press conference, that's what weak, dishonest Justin Trudeau did", Navarro said on "Fox News Sunday".
"We urge Russian Federation to cease its destabilising behaviour, to undermine democratic systems and its support of the Syrian regime", the leaders said in a statement at the end of their two-day meeting in La Malbaie, Quebec.
But he got direct personal support from some European leaders.
Saying Trudeau is "dishonest & weak", he also threatened "tariffs on automobiles flooding the U.S. Market!"
French President Emmanuel Macron said worldwide co-operation could not be "dictated by fits of anger and throwaway remarks". We are sticking to them and whoever reneges on them is showing incoherence and inconsistency.