"It's gonna change", Trump declared.
"There will not be a sunset clause ... we will not, can not sign a trade deal that expires automatically every five years", he told a news conference at the end of a Group of Seven summit in Quebec.
Image copyright JESCO DENZE What was agreed?
G7 leaders, led by Prime Minister Justin Trudeau, Germany's Angela Merkle and French President Emmanuel Macron confronted Mr. Trump with a slew of data on import and exports to sway his thinking, but the President was unmoved.
"Trade must be not only free but also fair and reciprocal", Navarro said in an op-ed in The New York Times.
The tweets came as the European Union and Canada announced retaliatory tariffs to match the levies on steel and aluminum which were imposed by the U.S. last week. "If it doesn't happen, we come out even better!"
Trump added: "Very dishonest & weak".
"We're like the piggy bank that everybody's robbing, and it ends", Mr. Trump told reporters at a press conference at the end of the meeting, just before he jets off to Singapore to meet with North Korea's leader.
Thus, the United States unilaterally withdrew from the Paris climate agreement, as well as from the Iranian nuclear deal, and imposed duties on steel and aluminum imports, including from Canada and its European partners.
At a fashion show, Anthony Bourdain, Kate Spade remembered
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According to Trump, who blamed the USA leaders who preceded him for the current trade deficits, the answer is a change in the entire global trading system.
Later, Trump will fly to Singapore where he is set to meet with North Korean leader Kim Jong Un on June 12.
On 1 June, the United States imposed a 25% tariff for steel and 10% for aluminium on imports from the EU, Canada, and Mexico.
"We need the president to be able to distinguish between our allies and adversaries, and to treat each accordingly", he said in a statement.
Trump earlier had criticised India over high tariffs on Harley- Davidson.
His comments follow his administration slapping Canada with hefty fines, as Ottawa looks to implement its own levies on American products starting Jul. 1.
Europe and Canada now appear ready to unite against Trump at the summit. "This isn't just G7".
On Saturday, Mr. Trump arrived late for the first working session on gender equality but Canadian Prime Minister Justin Trudeau forged ahead with opening remarks without him, commenting wryly about "stragglers".
Trudeau's press conference was dominated by discussions about trade, including the contentious renegotiation of NAFTA, the trade deal between Canada, U.S. and Mexico.
Trump shocked the summit earlier today by calling for Russian Federation to be allowed to return to the G7 after it was kicked out in 2014 for invading Ukraine and annexing Crimea.
German Chancellor Angela Merkel sat between Macron and Trump on a sofa, while Trudeau sat to the left of the U.S. president.