"I own that, that was my mistake, those were my words", Navarro said.
Navarro's original statement, on "Fox News Sunday", followed a pair of tweets in which Trump raged about comments Trudeau made at a news conference after a summit of the Group of Seven industrialized nations.
There was nothing new in what Trudeau said, having previously stated that Canada was "insulted" Trump said metal tariffs were necessary for national security reasons.
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.
Navarro then appeared on Fox News Sunday.
Later during the show, Smith further said Trump's latest attitude towards Trudeau isn't a new thing and he has "been kicking allies in the teeth his whole presidency".
Heyman was referring to Trump tweets that including calling Trudeau "weak" and "dishonest." And I'll tell you this: "to my friends in Canada, that was one of the worst political miscalculations of a Canadian leader in modern Canadian history".
"Canada does not believe that ad hominem attacks are a particularly appropriate or useful way to conduct our relations with other countries", Freeland said. "And Justin. And I said, "Oh that's nice, Justin's giving a" - And then he talked about how they won't be bullied".
On CNN's State of the Union, Trump economic advisor Larry Kudlow labeled Trudeau as "polarizing", "sophomoric", "deceptive", and "amateurish".
"We all know we will be strongest with America in our ranks - and indeed in the lead", she said.
"He learned", Trump said.
The Trudeau government has announced it will impose dollar-for-dollar, retaliatory tariffs on metals and a range of other US products by July 1. "That's going to cost a lot of money for the people of Canada".
While POTUS may actually have started a trade war that will end in a severing of the longstanding Canada-US relationship and the end of free trade between the countries, it's nice to know that most Americans are pro-Canada and that our government can unify when it really matters.