Indeed, their 29-second white knuckle handshake at their first meeting was an indicator that they had the measure of each other and Mr Macron even came to be dubbed the "Trump Whisperer" after his successful hosting of the US President for the Bastille Day celebrations last July.
"The EU trade surplus with the U.S. is $151 Billion, and Canada keeps our farmers and others out", Trump said in a tweet before adding that he looked forward to meeting the two leaders on Friday.
At the National Assembly Thursday morning, Couillard told reporters that the burning topic at hand is the imposition of tariffs on Canadian exports. It gave Trump a brief respite from criticism over the punishing steel and aluminum tariffs he has imposed on his G7 partners.
The analysis focuses on the likely financial impact for US companies as the nation's traditional trading partners reciprocate for American steel and aluminum tariffs.
With the leaders of the Group of Seven industrialised democracies due in Quebec, Canada's Prime Minister Justin Trudeau warned the U.S. leader that they would not roll over on trade tariffs.
But they expressed support for the US president's historic meeting in Singapore with North Korean leader Kim Jong Un, scheduled to take place early next week.
"We just go ahead and do things".
OTTAWA-The Canadian government is rejecting a push by the Trump administration to strike separate, bilateral trade deals with Canada and Mexico instead of pushing ahead with a stalled effort to renegotiate the North American Free Trade Agreement. Angela Merkel, the German chancellor, has a frosty relationship with Trump.
Mr Trump, expected to be the last to arrive and first to leave, has imposed steel and aluminium tariffs that have sparked reprisals from trade partners.
Trump has previously said that America has "the worst trade deals ever made".
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Kudlow also pointedly denied a media report suggesting U.S. Treasury Secretary Steve Mnuchin tried to talk the president into extending an exemption for Canada from the steel tariffs, calling it "patently false".
The fallout from Trump's imposition of steel and aluminum tariffs on his G7 partners, as well as broader disagreements on trade and climate change, was also fuelling the G6-plus-one divide that has the USA increasingly offside with its allies.
Other products affected by the new tariffs include apples and potatoes.
"Canada is a different country than Mexico-they have different problems, and you know, he's believed that bilaterals have always been better", Kudlow said.
"Canada is fighting back to support Canadian workers and the businesses that employ them", Goodale said.
"So we're going to deal with them separately and negotiate with them separately is what the president's made a decision to do".
The US president was very much the odd man out on climate change during the G7 in Italy previous year, later announcing his intention to withdraw from the landmark Paris agreement. The agreement included Germany and the five permanent members of the United Nations Security Council, which includes France and Britain - all G7 members.
Trump is no fan of the world's multilateral institutions, and that has him on a collision course with his fellow G7 leaders, creating the so-called G6-plus-one dynamic.
When Trudeau won power, the bedrock of his foreign policy was to return Canada to its traditional multilateral leanings - support for institutions such as the United Nations, NATO, the G7 and the global trading order.
They also renewed their commitment to the fight against climate change and to promote democratic values, free and open trade, and gender equality.