He said while the US has kept its tariffs low to promote global free trade, other countries have left protectionist policies in place, disadvantaging the U.S. You want no barriers. "I think it will be very positive", Mr Trump said on Friday, without giving details.
'Canadians, we're polite, we're reasonable, but we also will not be pushed around, ' Trudeau said.
And he said his recent imposition of punishing steel and aluminum tariffs was based on legitimate national security concerns, rebuffing the concerns of allies.
But the attempts to convey at least a semblance of unity were undermined when Canada's Prime Minister Justin Trudeau confirmed he was going ahead with his tariffs against the United States in response to USA moves against his country's steel and aluminum industries.
President Donald Trump suggested a radical change to the global trading system in an apparent reversal of his recent tariff policy. But the leaders are saying they're committed to continuing the dialogue and continuing to work on this matter.
Trump withdrew the United States from the Paris climate accord and his attendance of a G7 session on the issue was in question well into the last minute. "They know it", he insisted in his departing news conference. "After many decades, fair and reciprocal Trade will happen!"
"For us, it was important to have a commitment to rules-based trade", Germany's Chancellor Angela Merkel said. "While sending their product into our country tax free". "We're gonna fix that situation, and if it's not fixed, we're not going to deal with these countries".
Trump's latest verbal counter-punch came in response to comments made by Trudeau at the press conference, in which he threatened to torpedo negotiations on a new NAFTA deal if the U.S. did not remove the steel and aluminum tariffs.
The statement comes just a few weeks after Trump chose to impose large tariffs on steel and aluminum imports from the European Union, Canada, and Mexico and a few months after Trump hit the rest of the world with the same tariffs.
Canadian negotiators have said a five-year sunset clause - which would prompt a reworking of the trade deal every five years - is a "poison pill" for trade talks.
As the leaders met, Trump played a wild card, suggesting that rather than both sides boosting retaliatory tariffs - as he has just done on steel and aluminum - they could declare for entirely free trade in the G7 zone.
Trump said he discussed the idea of eliminating tariffs with his G7 counterparts. "The relationships are very good", he added, mentioning his discussions with French and Canadian leaders specifically.
Globally, tariffs are close to their lowest levels ever - averaging around 2.9% - according to the latest data from the World Bank. "It's going to change".
"This G7 does not put an end to all our disagreements, but in a context of tension it did allow us to preserve unity wherever that was possible", he said, hailing in particular the way European leaders had made common cause.
Trump said: "If they retaliate they are making a mistake". We have a tremendous trade imbalance.
A reporter asked Trump about his relationships with the other countries in the G7 and whether he felt like alliances were shifting. The U.S. president delivered a rambling statement before taking questions from journalists.
In a freewheeling news conference at the G7 summit in La Malbaie, Trump defended his contentious case for bringing Russian Federation back to an expanded G8, and he riffed again on what he said are unfair trade deficits with his country.
Earlier this week, Tennessee Sen. The president alluded to the surprise during the press conference.
"We stick to the communique as agreed by all participants", a European official said on condition of anonymity.
Trump has long criticized the United States' goods deficit. Ayesha, thanks so much for speaking with us.
"We are focused on everything we accomplished here at the #G7 summit", a spokesman for Trudeau tweeted.
Responding to Trump's proposal, Italy's new Prime Minister Guiseppe Conte tweeted on Friday: "I agree with President @realDonaldTrump: Russia should re-enter the G8".
The EU then announced tariffs on USA goods ranging from Harley-Davidson motorcycles to bourbon.