President Donald Trump's trade adviser Peter Navarro has apologized for having said there is "a special place in hell" for Canadian Prime Minister Justin Trudeau.
Navarro offered the apology at a Wall Street Journal conference Tuesday, the Journal's Gerald Seib tweeted.
Seib quoted Navarro as saying: "Let me correct a mistake I made...In conveying that message I used language that was inappropriate."
Trump was furious after Trudeau had said at the end of an economic summit in Quebec that he wouldn't let Canada be pushed around in trade relations with the United States. He called Trudeau "dishonest" and "weak" in tweets.
His advisers then took up the attack in appearances on Sunday's news shows.
Appearing on "Fox News Sunday," Navarro said: "There's a special place in hell for any foreign leader that engages in bad faith diplomacy with President Donald J. Trump."
Trump's chief economic adviser Larry Kudlow said on CBS' "Face the Nation" that the Canadian leader "betrayed Trump" ahead of the North Korea summit. The following day Kudlow suffered a heart attack and was recovering at Walter Reed National Military Medical Center.
Trump for his part, said before departing Singapore that Trudeau had "learned" from the mistake of criticizing him, and it's going to cost Canada "a lot of money."
At a news conference Tuesday after his summit with North Korean leader Kim Jong Un, Trump said the Canadian leader must not have realized that he had televisions on Air Force One, allowing him to monitor Trudeau's news conference at the end of the G-7 summit.
Trudeau, asked about Trump's remarks in Parliament on Tuesday, said he supports the American president's efforts on North Korea and looks forward to the details of that agreement.
"On his comments I'm going to stay focused on defending jobs for Canadians and supporting Canadian industries," Trudeau said before walking away from reporters.