"I said very simply that it is not something we are even remotely interested or looking at this time to have Russian Federation returned to the G7", Trudeau said at the press conference following the two-day summit. "I think, on trade, there is.a way to progress all together", he told reporters after his meeting with Trump.
U.S. officials travelling with Trump admitted they had been surprised by Trump's suggestion, which one said was "not something planned", and Canada's Foreign Minister Chrystia Freeland said it had not been formally put on the G-7 table. "$800 Billion Trade Deficit..."
The remarks caused an immediate reaction from the G7's other leaders.
European leaders met separately on Friday ahead of the G7 summit in La Malbaie, a golf resort north of Quebec City, and presented Trump with a united front "backed by facts and figures" to counter his charge, officials said.
President Donald Trump delivered a stern warning on trade to foreign countries at the Group of Seven summit on Saturday, advising trading partners not to retaliate against US tariffs on the imports of steel and aluminum.
He promised a "frank and direct discussion" with Trump at an upcoming summit in Canada. G7 chiefs have largely praised Trump for his efforts to stabilize the Korean peninsula, but they are unhappy he pulled out of an worldwide agreement to limit Iran's nuclear ambitions.
Typically billed as a gathering aimed at fostering worldwide cooperation, this year's G7 meeting is held in the shadow of a looming trade war between old allies, with heated exchanges between leaders of US, France and Canada.
The White House is escalating its verbal attacks against Justin Trudeau, the prime minister of close American ally Canada.
Both Moscow and Mr Trump have denied the allegations.
A German official said that if Trump declines to sign a communique, it won't be the end of the G-7, but it would be a worrisome signal.
"You know, whether you like it or not, and it may not be politically correct, but we have a world to run and the G7, which used to be the G8, they threw Russia out, they can let Russia come back in, because we should have Russia at the negotiating table", Trump told reporters before leaving Washington.
Trump was the last G7 leader to arrive and will probably be the first to leave on Saturday when he sets off for his nuclear summit with North Korea's Kim Jong Un in Singapore.