During a recent phone call with Canadian Prime Minister Justin Trudeau, Donald Trump showed off his incredible ignorance about basic USA history by reminding Trudeau that Canada burned down the White House in 1812.

"The impact on Canada and ultimately on workers in the US won't be a laughing matter", one source told the network. "The World Trade Organisation, for example, has become completely ineffectual".

"There are disagreements. He's sticking to his guns".

Mexico's actions are within the rules of the WTO and NAFTA, Mexican Economy Minister Ildefonso Guajardo told reporters on Tuesday.

Asked about Trump's remark that the Canadians burned down the White House, aides to the President and to Canada's Trudeau declined to comment.

Mexico imports so much USA pork - almost one-third of what's consumed - that the government says it will waive tariffs on up to 350,000 tons of pork imported from other nations to avoid destabilising the market.

The official, speaking to reporters after Macron met Trudeau for talks in Ottawa on Wednesday, said the six non-U.S. G7 nations were united on the main topics to be discussed.

"Canada's position is, and always has been, that the tri-lateral approach is actually better for Canada, for Mexico, and for the United States".

The EU issued an update on its response on Wednesday, 24 hours after Mexico confirmed it had launched tit-for-tat tariffs on U.S. steel and was also targeting United States goods such as pork and bourbon products.

Trump's meeting with Trudeau could be particularly frosty, given the president's recent sharp criticism of Canadian trade policies and the anger in Ottawa over Washington's decision to justify its new tariffs on national security grounds. "That Canada could be considered a national security threat to the United States is inconceivable", Trudeau said, according to the Associated Press. "Because these six represent values, represent an economic market, and more than anything, represent a real force at the global level today", he said.

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Mr. Trump's top economic adviser, Larry Kudlow, told reporters on Wednesday that the US administration won't back down on the Trump trade and tariffs dispute with USA allies.

German Chancellor Angela Merkel said she expected "difficult discussions" at the summit.

Canada and Mexico already have retaliated against a range of USA exports and the European Union has promised to do so as well, raising the spectre of a tit-for-tat escalation.

Apparently the Smithsonian Institute agrees with the President, publishing an article titled, "Today We Celebrate the Time Canada Burned Down the White House".

The Trump administration announced its decision to impose a 25 per cent tariff on Canadian, Mexican and European Union aluminum and steel imports days later. But U.S. shares rose on Wednesday.

"Within the worldwide framework, we have to take measures and that's what Canada has done and what the European Union has also announced".

Before President Donald Trump sits down with a third-generation North Korean autocrat, he will face what may well turn out to be a tougher crowd - some of America's oldest allies.

But in a nod to concerns raised by Trump past year, the joint statement also said "At the same time, that trade has not always worked to the benefit of everyone". France would also oppose any wording that described the Iran pact as obsolete, the official added.

Macron called on other G7 leaders not to water down a joint communique at the end of the summit, at the expense of shared values, simply in a bid to win Trump's signature, warning that a "G6 plus one" outcome was possible.


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