Tusk was referencing a comment made by Trump aide Peter Navarro, who shocked even the US President's Republican colleagues when he called Trudeau a backstabber - over the issue of trade tariffs - and verbally consigned him to "hell" after a G7 meet in Canada over the weekend.
"Prime Minister Trudeau is being so indignant, bringing up the relationship that the USA and Canada had over the many years and all sorts of other things.but he doesn't bring up the fact that they charge us up to 300 percent on dairy - hurting our Farmers, killing our Agriculture!"
"Canadians, we're polite, we're reasonable, but we also will not be pushed around", Trudeau said at the G7.
US President Donald Trump partly "destroyed" Washington's trusting relationship with Europe by pulling out of a joint communique after the G7 summit, German Foreign Minister Heiko Maas tweeted Sunday.
Kudlow, who was in Canada with President Trump for the G-7 meeting, told CNN on Sunday that the US had come to an agreement with the other highly-industrialized nations in the group on a joint communique until Trudeau's "sophomoric play". That's what week, dishonest Justin Trudeau did.
Trump announced after Trudeau's press conference that the USA would not sign onto the G-7 communique.
Kudlow said Kim must not see "American weakness" on the eve of the Tuesday summit.
Over the course of the summit, the President pushed the narrative that the U.S.is a victim of a trade imbalance, though European leaders rejected these claims.
McCain's message came after President Donald Trump withdrew the US endorsement of a joint statement from the G-7 summit on trade and tariffs.
The details of the conversation, which Axios previously reported, come amid fears of a looming trade war over the Trump administration's move to impose steep tariffs on steel and aluminum imports from the European Union, Canada and Mexico. On the other hand, another social media user said, "It looks as if Madam Merkel is teaching The Donald a lesson!"
It was all smiles during a photo opportunity at the G7 Summit. "I personally negotiated with Prime Minister Trudeau", Mr. Kudlow said.
"They should have said to him, 'God speed, you are negotiating with the insane nuclear tyrant in North Korea, and we are behind you, '" Kudlow said.