"He really actually, you know what, he did a great disservice to the whole G-7". "We're going to fix that situation". We agreed. We compromised on the communique.
Trump also raised eyebrows by urging the G7 to once again become a G8 by bringing Russian Federation back into the fold and for criticizing his allies, including Canada, for what he called unfair trade barriers.
White House economic adviser Larry Kudlow and Canadian Prime Minister Justin Trudeau. The Canadian leader pulled a "sophomoric political stunt for domestic consumption", Kudlow said, that amounted to "a betrayal".
"Very dishonest [and] weak", Trump tweeted.
Mr Kudlow sought to tie Mr Trump's reaction to the upcoming summit with Mr Kim Jong Un, saying the North Korean leader "must not see American weakness". The G-7 also includes Britain, Italy, France, Germany and Japan.
US President Donald Trump and Group of Seven leaders had a bitter exchange over trade tariffs, ratcheting tensions at a summit that he planned to leave early on Saturday before talks on climate change and the health of oceans.
"Canadians are polite and reasonable but we will also not be pushed around", he said.
Trudeau also stated that Canadians did not take it lightly that the USA has moved forward with significant tariffs on their steel and aluminum industry.
"International cooperation can not depend on fits of anger or little words".
France is also standing by the G7 communique, a French presidency official said.
Trump also backtracked on his previous agreement to endorse the G7 communique, leaving the USA off the joint statement released by six other world leaders addressing issues like trade cooperation and Iran's nuclear program.
Trump swiftly responded to Trudeau by upending the communiqué in a series of tweets Saturday evening.
"When we disagree with our allies on something it is right that we say so and air the issue openly and frankly", she said at a news conference.
"We spend two days working out a (joint) statement and commitments".
"We commit to modernise the WTO to make it more fair as soon as possible".
On June 1, the U.S. imposed a 25 per cent tariff for steel and 10 per cent for aluminium on imports from the European Union (EU), Canada, and Mexico.
Navarro appeared on "Fox News Sunday", and Kudlow was on CNN's "State of the Union" and CBS' "Face the Nation" and Harper spoke on Fox's "Sunday Morning Futures". "When I'm telling them, they're smiling at me".
Trump did Trudeau the "courtesy" of travelling to the Quebec region of Charlevoix for the G7 meeting when the president had bigger things on his plate, said the White House adviser.