Ontario premier-designate Doug Ford is also among those setting aside his political differences with Trudeau, re-asserting today that he stands "shoulder to shoulder" with the prime minister on trade.
"Canada's position is absolutely clear".
"Why are we having a meeting without Russian Federation in the meeting?" "This too shall pass", tweeted the former Federal Bureau of Investigation director, who referred to Trump as a "mafia boss" in his recent tell-all, "A Higher Loyalty". "It is in the interests of all".
Russian Federation joined the G-7 in 1998. "I would not dismiss the G7 format".
Russian Federation was suspended from the G-8 in March 2014 a week after Russia's annexation of Crimea from Ukraine.
"For us, it was important that we have a commitment for a rule-based trade order, that we continue to fight against protectionism and that we want to reform the WTO", Merkel said.
Tensions between the U.S. and its G7 partners over trade and the United States withdrawal from the Iran nuclear deal were rife ahead of the summit which had been dubbed by some as "G6 plus one", referring to an isolated US.
Trudeau told the president that Canadians did not take it lightly that the US has moved forward with significant tariffs on their steel and aluminum industry.
Macron arrives in Canada, meets Trudeau ahead of G7 Summit
Kudlow also said he relayed Trump's message to a senior member of the Prime Minister Justin Trudeau's office. European Union and Canadian leaders also appeared ready to unite against Trump at the upcoming G7 summit.
Trump's counterparts in the G7 have been scrambling this week to try to find some semblance of consensus with Washington on trade and the other key issues that have formed the basis of the 42-year-old organization. "I don't understand the obsession with trade relations with Canada", he said on Fox's "Sunday Morning Futures", given that Canada is the biggest single buyer of American goods and services in the world.
The G-7 summit communique called for working together to stimulate economic growth "that benefits everyone", and highlighted a commitment to a "rules-based global trading system" and "fight protectionism".
"Fair Trade is now to be called Fool Trade if it is not Reciprocal", Trump tweeted, as he criticized Canadian tariffs on imports of United States milk.
The US president has steadfastly refused to acknowledge that Russian Federation had any substantive impact on his 2016 election, despite the verdict of his own spy agencies and a major FBI investigation that has looked into his campaign's ties with Russian Federation.
Despite the tough talk, diplomats have described the ongoing discussions as "cordial and productive". It is unclear where an communique agreed by all will be released on Saturday.
Solidifying his solo status on the world stage, Trump also lashed out at longtime allies over their criticism of his trade policies.
"He did a great disservice to the whole (G-7)", White House Economic Advisor Larry Kudlow told CNN. "President Trump had no alternative, in my opinion". "Engaging, keeping the dialogue alive, now & ever".