Kudlow admitted to CNN on Sunday that Trump had "compromised on the communique" but changed his mind later, seeing Canadian Prime Minister Justin Trudeau's appear vindicated after the summit. He said he was unhappy at an end-of-summit press conference by Trudeau after he left the summit, in which Trudeau said Canada would retaliate against USA trade tariffs. Trump accused Canadian Prime Minister Justin Trudeau of making "false statements", and said the U.S. is looking into automobile tariffs. Looking ahead to the next major diplomatic encounter with Trump - a meeting of North Atlantic Treaty Organisation alliance leaders in July - "it won't be easy", Merkel said.
Doctored images showed the U.S. president as a petulant child - including memes with Trump overturning a bowl of noodles on his head or clutching a teddy bear as Merkel sternly looks on.
The EU has vowed to retaliate against US metal tariffs imposed by US President Donald Trump, and tensions worsened at a Group of Seven summit in Canada after Trump rejected an attempt to write a consensus statement and bitterly insulted the Canadian host. He went on to announce that the USA would be looking to impose tariffs on auto imports.
Trump's "America First" message to allies has hardened since he brought hardline national security adviser John Bolton on to his team. Trump reportedly called NAFTA the "worst deal ever" and told the leaders, face-to-face, what he believes each country "owed" the United States.
"We're like the piggy bank that everybody's robbing, and that ends", he said.
Merkel said she first found out about Trump's decision on the flight back from Canada. As the summit closed, Trudeau held a televised news conference to discuss the communication, where he was asked about Trump's new tariffs on Canadian steel and aluminum.
Shortly after that statement was published online, Trump complained about comments made by Trudeau and revoked his support.
The German chancellor also said she is not ready to "give up on G7" but would seek dialogue with Russian Federation and try to "work very closely" with Japan, Canada, India and China.
Trump turned the tables by challenging world leaders to eliminate all trade barriers, tariffs and subsidies and he threatened to stop trading with them entirely.
"International cooperation can not be dictated by fits of anger and throwaway remarks", Macron said in a statement.