U.S. President Donald Trump says Canada will have to dismantle its supply-managed dairy system or else Americans will dramatically curtail its trading relationship - a shot across the bow at Prime Minister Justin Trudeau, who has vocally defended the country's existing agricultural policies in the face of U.S. opposition.
Both Moscow and Mr Trump have denied the allegations.
'I have not spoken to Vladimir Putin for quite a while.
Speaking about Russia's military incursion in Crimea, a peninsula that was part of Ukraine, Trump on Saturday blamed President Obama for the annexation. Russian Federation joined the G-7 in the 1990s, making it the Group of Eight, but was expelled after its annexation of Crimea in 2014.
But Sasse said Trump's complaints that other countries have taken advantage of the United States are unfounded, adding that he recommended "less whining on the global stage".
President Donald Trump says the US will either do a three-way free trade deal with Mexico or Canada or direct deals and says there will be a "sunset clause" that will allow for the deal or deals to be reopened at a later date. We're looking for peace in the world.
Trump often appeared more interested in the unprecedented summit he will hold Tuesday with North Korean leader Kim Jong Un, where he said he looks forward to sizing up both Kim and the potential for ending one of the worlds most risky nuclear standoffs. "I think within the first minute I'll know", Trump said.
In private conversations with leaders from France, Canada, the United Kingdom, and Japan Friday, Trump countered complaints about US trade policy with detailed lists of what he described as unfair trade practices and failures to meet security commitments, according to a person briefed on the matter.
"We win that war a thousand times out of a thousand", Trump said.
German Chancellor Angela Merkel sat between Macron and Trump on a sofa, while Trudeau sat to the left of the USA president.
Though the USA appears increasingly isolated from its allies, Trump on Saturday insisted that his relationships with other leaders remains "great". "I would say that the G-8 is a more meaningful group that the G-7". There is nothing they can say.
I think it would be good for the United States.
On 1 June, the USA imposed a 25% tariff for steel and 10% for aluminium on imports from the EU, Canada, and Mexico.
The summit was wrapping up just as Chinese President Xi Jinping begins hosting the leaders of Russian Federation and Iran at a two-day regional security meeting in a symbol of the power-play between East and West.
Trudeau has made the issue of gender equality a priority for the gathering.
US President Donald Trump was due to leave the Group of Seven (G7) meeting earlier than other leaders to head to Singapore for a much-anticipated summit with North Korea's leader Kim Jong-un on June 12. Then he tried to ease tension with friendly banter and vague claims of progress in trade talks.
The two-day session under crystalline blue skies in Charlevoix, Quebec, put Trumps transactional view of alliances, economic leverage and trade relationships into sharp focus for other nations often frustrated by Trumps ad hoc decision-making.