We agreed. We compromised on the communique.
USA trade adviser Peter Navarro, speaking on "Fox News Sunday", reinforced that message.
"There's a special place in hell for any foreign leader that engages in bad-faith diplomacy with President Donald J Trump and then tries to stab him in the back on the way out the door", he said.
Trump and Trudeau exchanged barbs after a highly contentious G-7 meeting resulted in a press conference in which Trudeau promised not to be pushed around. "Very dishonest & weak", he said of Trudeau.
Throughout the summit, photographers captured photos of the tension between Trump and other world leaders.
Larry Kudlow, director of the National Economic Council, lashed out at Canadian Prime Minster Justin Trudeau as "amateurish" and "sophomoric" for a news conference he gave after Trump left the Group of Seven summit on Saturday.
Mr Trump had already left the summit when Mr Trudeau announced retaliatory measures Canada would take next month in response to United States tariffs on steel and aluminium imports from Canada, Mexico and the European Union. "Let us be serious and worthy of our people", the statement said.
That decision was "kind of insulting" to Canadian veterans who had stood by their USA allies in conflicts dating back to the first world war, Trudeau said.
Trump's bombshell tweet came after G7 nations appeared to have papered over the cracks in their alliance at the two-day summit in La Malbaie, Quebec, where Trump defiantly brandished his "America First" agenda. "The prime minister said nothing he hasn't said before - both in public, and in private conversations with the president".
Donald Trump and Justin Trudeau have been at loggerheads over trade tariffs
"Kim must not see American weakness".
French President Emmanuel Macron's office reacted on Sunday by saying that "international cooperation can not be dictated by fits of anger and throwaway remarks".
Ms Merkel said European Union countries at the summit agreed that the conditions to readmit Russian Federation had not been met and even Moscow seemed to reject the suggestion.
Canada responded to the U.S. move with counter-measures.
Trump himself had severely criticized Trudeau on Saturday, saying the USA would not sign the G-7 communique despite the Canadian leader's previous comments.
On board Air Force One, an AFP reporter was told that Mr Trump had approved the agreement, only to be told later of the tweets. "I think it will be very positive", Trump said on Friday, without giving details.
"We commit to modernise the WTO to make it more fair as soon as possible".
"Tariffs are going to come way down because we people can not continue to do that".
In an interview with CNN, Mr Bornstein said the 2015 letter suggesting that Trump would be the "healthiest individual ever elected to the presidency" was not his professional assessment.
In much of the European press, the tendency was to underscore the historical significance of the rift between the United States and its continental allies. "They know it", he insisted in his departing news conference.
A German government spokesman also said that Berlin stands by the jointly agreed G7 communique in which leaders underlined the crucial role of a rules-based global trading system and promised to fight protectionism.