"Let me correct a mistake I made", Navarro said at a Wall Street Journal conference, according to video provided by the Journal's CFO Network. The problem was that in conveying that message I used language that was inappropriate.
White House economic adviser Larry Kudlow on Sunday also accused Trudeau of having "stabbed us in the back" and engaging in a "sophomoric, political stunt for domestic consumption".
"... No, I have a good relationship with Justin Trudeau. We just shook hands!'" Trump said Tuesday.
"He is not going to permit any show of weakness on the trip to negotiate with North Korea", Kudlow told CNN.
And Marc Short, the White House director of legislative affairs, said that Navarro's comments were not the words that he would have chosen to characterize the leader of Canada. Trudeau and other world leaders like French President Emmanuel Macron pushed back, rejecting the notion that they were a national security threat to the United States.
Before the apology, some USA lawmakers on Tuesday questioned the strong language the White House and Trump have used toward Canada in contrast to the praise he gave North Korea at Tuesday's summit in Singapore. And I say, 'Push him around? "It was very friendly", Trump said. He learned. You can't do that.
Trump, meanwhile, renewed his criticisms of Canada's protection of its dairy sector, saying: "It's very unfair to our farmers, and it's very unfair to the people of our country".
Earlier on Tuesday at the Washington conference, White House Council of Economic Advisers Chairman Kevin Hassett said the U.S. and Canada need to "take a deep breath". "I mean seriously, Russia, who took over Crimea, all the violence that's taken place in Ukraine, the poisoning of people in the United Kingdom, the influence in our election this last time period", Heyman recounted. "He informed with absolute certainty and firmness as tension over steel and aluminium duties continue to portend to a full-blown global trade war, "I don't want to hurt American workers, they are our neighbours and our friends", adding, "[however] My job is to stand for Canadian workers, Canadian interests and I will do that, without flinching".