However, Navarro says he used inappropriate language in trying to convey that message.
"I find it hard to try to apologize for words that come from the mouths of people in our government, so I don't even try", she said.
Asked if he was apologising for the comments, Navarro said: "Yeah, absolutely". Appearing on separate news shows, Kudlow accused Trudeau of "betrayal" and Navarro called the news conference a "stunt" and went on to assail the prime minister in unusually harsh terms. At that post-G7 press conference on Saturday, Trudeau had called US steel and aluminum tariffs "insulting" and said he would proceed with retaliatory tariffs that he'd already announced.
Trump refused to sign the G-7 joint agreement after Trudeau severely criticized Trump following the worldwide summit.
From a big-picture perspective, there are concerns about how the rest of the world sees the United States globally, he added.
Amid the high-stakes trade negotiations still under way between China and the United States, Beijing is moving full steam ahead with a strategy that one top White House adviser said was the target of U.S. trade action.
Navarro, a supporter of tariffs to help reduce the United States trade deficit and a longtime critic of China, turned his anger at Canada over the weekend as a Group of Seven meeting hosted by Trudeau ended in disarray and trade threats.More news: Dustin Johnson shoots 7-under 63 to grab lead at St. Jude
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Canadian politicians of all stripes have rallied around Trudeau, unanimously passing a motion Monday supporting the prime minister and denouncing Trump's personal attacks on him.
Mr Kudlow said the President won't "let a Canadian prime minister push him around ..."
The insults stemmed from a closing G7 press conference on Saturday in which Trudeau called USA steel and aluminum tariffs "insulting" and pledged to proceed with previously announced retaliatory tariffs. "Other than he had a news conference that he had because he assumed I was in an airplane and I wasn't watching", Trump said.
"If Kim shakes Trump's hand and receives lavish praise from President Trump and tries to play President Trump - look what happened to Canada - bad things are going to happen", said Graham, the hawkish South Carolina Republican.
The president said he had a "good relationship with Justin". He learned. You can't do that.
In response, Trudeau, who has vowed to defend the system, made a point of making an unannounced visit to a "downtown diner" set up near Parliament Hill by farmers to demonstrate the high-quality food supply management helps provide. He's railed many times in recent days against Canadian import duties of 270 percent on dairy.
"From the beginning we have said that our approach would be to hope for the best, to work for the best possible outcome but always be prepared for the worst, to have a Plan B, C, D, E and F - and maybe to the end of the alphabet".
"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. They take effect July 1.