President Donald Trump's disavowal of a joint statement after the Group of Seven meeting was made to avoid looking weak going into the North Korea summit after "sophomoric" comments by Canada's Justin Trudeau, a top aide said.
But when Trudeau said Canada would be forced to retaliate for USA tariffs on steel and aluminum and would not agree to a sunset provision in a new North American Free Trade Agreement, "he really kind of stabbed us in the back", Kudlow said.
'I used language that was inappropriate and basically lost the power of that message, ' says Navarro.
He made the apology - something that former USA ambassador to Canada Bruce Heyman, among others, was demanding that he do - during a Wall Street Journal event today in Washington.
In contrast, Trump was incredibly friendly during his historic meeting with Kim in Singapore on Tuesday, even giving the North Korean leader a thumbs-up.
"My job was to send a signal of strength. I own that, that was my mistake, my words", the trade adviser said.
But Mr Trudeau's comments provoked a response from the United States president.
"I'm pretty sure that circles of hell are not reserved for Canadians proposing retaliatory tariffs", said Texas Republican Sen.
The Canadian Prime Minister initially said Trump's claims that Canadian steel posed a national security threat were dishonest.
Navarro said on Fox that his words came "straight from Air Force One". "I really did. Other than he had a news conference that he had cause he assumed I was in an airplane and I wasn't watching". And I say, 'Push him around?
"We have been encouraging the federal government to engage with China on free-trade talks because there is such significant potential in that market", said Bilous.
"Canada does not conduct its diplomacy through ad hominem attacks ... and we refrain particularly from ad hominem attacks when it comes from a close ally", Ms Freeland told reporters in Quebec City.
"It's very unfair to our farmers, and it's very unfair to the people of our country", he said.
President Trump responded with a tweet calling Trudeau "very dishonest and weak" and followed up by saying the United States would not endorse the G7 communique, a document signed by the seven leaders underlining their commitment to free and open trade.
The foreign affairs minister will have her work cut out for her as she attempts to see Canada spared from the U.S.'s heavy-handed steel, aluminum and auto tariffs and mend the increasingly frayed relationship between the two countries.
It's unclear what additional action the US would take against Canada.
Trump has repeatedly threatened to withdraw the United States from NAFTA and negotiate bilateral deals with Canada and Mexico. Among other things, she said the government should be preparing to keep pace with corporate tax cuts and tax breaks south of the border. According to the World Bank, U.S. tariffs applied to all products average about 1.6 percent.