After Mr Trump left a tense G7 summitearly, Mr Trudeau said he would answer United States tariffs on Canadian steel and aluminium with retaliatory tariffs against U.S. products next month.
Bruce Heyman, a former USA ambassador to Canada, tweeted that Mr. Navarro should "formally and publicly apologize to Justin Trudeau and more importantly the Canadian people for his insulting and inappropriate remarks".
Not all USA officials have joined Messrs.
"We have been encouraging the federal government to engage with China on free-trade talks because there is such significant potential in that market", said Bilous. Canadians are "polite, we're reasonable, but we also will not be pushed around", Trudeau said.
On Trump's handling of trade - where the populist president has taken major steps to enact his economic nationalist agenda - almost 80 percent of Republican voters said they approve of trade actions thus far.
Trump added that Trudeau's statements would "cost a lot of money for the people of Canada". Canada does have very big advantages over us in terms of trade deficits.
Navarro, in a Fox News interview on Sunday, condemned Trudeau after the Canadian leader's post-summit news conference following the summit with US President Donald Trump and other world leaders from the Group of Seven. Trump and Navarro in ratcheting up tensions with Canada since the tariffs were announced at the end of May.
Trump has repeatedly threatened to withdraw the United States from NAFTA and negotiate bilateral deals with Canada and Mexico. He was asked why he was jeopardizing relations with long-standing allies like Canada while welcoming a historical US enemy with open arms as a friend.
NDP Leader Jagmeet Singh urged the federal government to get serious about drafting a rescue plan for steel and aluminum workers, who are going to feel the brunt of the initial impact of the dispute - and soon.
"Sometimes when we think about tariffs, when we think about a trade war, we lose sight of the real impact, and that's on workers", Singh told a news conference on Parliament Hill. "We look forward to looking at the details of the agreement".