Officials from President Donald Trump‘s administration are not mincing their words when describing how they feel about other foreign leaders in the aftermath of the G7 summit.

Trade Adviser Peter Navarro Slams Justin Trudeau After G7

The international meeting between seven of the world’s leading nations was held in Quebec, Canada, over the weekend and proved to be a tense encounter between Trump and other foreign leaders.

Peter Navarro, the White House director of trade policy, was perhaps one of the fiercest critics of one other particular leader who attended the summit, Canadian Prime Minister Justin Trudeau. 

“There’s a special place in hell for any foreign 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,” Navarro said in an interview with Fox News on Sunday. “That’s what bad-faith Justin Trudeau did with that stunt press conference,” Navarro said. “That’s what weak, dishonest Justin Trudeau did.”

Trump also called Trudeau “very weak and dishonest” following the summit.

Larry Kudlowa former CNBC commentator who is now Trump’s top economic adviser, said Trudeau had engaged in “betrayal” of the U.S.

Trump escalated a trade war earlier this month when he announced he would impose tariffs on steel, aluminum and other metals from Canada, Mexico and the European Union. Leaders from all the countries affected quickly condemned the move, with some even calling the tariffs “illegal” and threatening to retaliate with trade taxes of their own.

Trudeau said it was “inconceivable” that the U.S could see Canada — one of its closest allies and a longtime supplier of steel and other metals — as a national security threat.

“Canadians are polite and reasonable, but we will not be pushed around,” Trudeau recently said.

Trudeau said in a press conference that Canada will “move forward with retaliatory measures on July 1, applying equivalent tariffs to the ones that Americans have unjustly applied to us.”

Trump also last week falsely accused Canada of burning down the White House during the War of 1812.

Trump continued ranting about what he regarded as ‘foolish’ trade practices in a series of tweets on Monday morning.

Chrystia Freeland, Canada’s Foreign Affairs Minister, told reporters in Quebec on Sunday: “Canada does not believe that ad-hominem attacks are a particularly appropriate or useful way to conduct our relations with other countries.”

She continued, “The most important thing is deeds rather than words, and the deed, the action which Canada has objected to, and will continue to object to very strongly, was the illegal and unjustified imposition of tariffs on Canadian steel and aluminum.”

Trump drew the ire of many foreign leaders and policy experts after he suggested last week, shortly before the G7 summit began, that Russia should be re-instated to the group.