US President Donald Trump has said that Canadian Prime Minister Justin Trudeau's criticism of his trade negotiation tactics following the G7 summit is "probably going to cost the people of Canada a lot of money".
However, Navarro says he used inappropriate language in trying to convey that message.
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.
European Council President Donald Tusk tweeted: "There is a special place in heaven" for Trudeau.More news: Stranger Things Game from Telltale in Development
Mr Trump said he chose to back out of the G-7 communique after watching Mr 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.
Subsequently, Trump said he had instructed his representatives not to endorse a joint communique put out by the Group of Seven leaders after what he called Trudeau's "false statements" at a news conference.
The feud escalated on Friday and Saturday as Trump called for Russian Federation to be readmitted to the G-7, a group of leading industrialized nations, and declared after he left the summit that the us would not endorse a joint communique issued by the group.
He also called Trump's meeting with North Korean ruler Kim Jong Un Tuesday "far more important" than the G-7.More news: Trump bashes OPEC for 'high' oil prices
At the administration level, the official said, Canadians concentrate on data in the face of some of the President's mischaracterizations of the trade relationship.
"Here in Canada, our federal government is delaying putting tariffs in place until July 1st", Aylward said.
Tuesday, Trudeau also offered support for Trump. "This is about our economy and millions and millions of jobs".
The minister stayed above the fray on those attacks, but she did not hesitate to repeat Canada's opposition to the tariffs in the bluntest of terms - in particular the use of Section 232 of USA trade law to justify the action on national security grounds. "But if history tells us one thing, it is that no one nation's pre-eminence is eternal".
It said Canada would "reject disparaging and ad hominem (personal attack) statements by US officials which do a disservice to bilateral relations and work against efforts to resolve this trade dispute".More news: UN Assembly blames Israel for Gaza violence
"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. "The wounds will heal, but the question [is] how does the relationship get impacted?"