Tweet with a location 
 
 You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more ||||| Please tell Prime Minister Trudeau and President Macron that they are charging the U.S. massive tariffs and create non-monetary barriers. The EU trade surplus with the U.S. is $151 Billion, and Canada keeps our farmers and others out. Look forward to seeing them tomorrow. ||||| FILE- In this Oct. 11, 2017, file photo, President Donald Trump shakes hands with Canadian Prime Minister Justin Trudeau in the Oval Office of the White House. When Trump visits Canada this week there's... (Associated Press) 
 
 FILE- In this Oct. 11, 2017, file photo, President Donald Trump shakes hands with Canadian Prime Minister Justin Trudeau in the Oval Office of the White House. When Trump visits Canada this week there's speculation he could walk out of meetings with allies furious over his belligerent trade policies.... (Associated Press) 
 
 QUEBEC CITY (AP) — President Donald Trump is cutting short his first presidential trip to Canada this weekend, as trade and foreign policy disputes appear set to mar his planned summit with the leaders of the Group of Seven wealthy democracies. 
 
 The U.S. president's reception in the picturesque town of La Malbaie along the St. Lawrence River is set to be a far cry from when Ronald Reagan visited Quebec three decades ago, when he was so friendly with Prime Minister Brian Mulroney they sang a song together. 
 
 Quarrelling with Trump over his protectionist tariffs on steel and aluminum imports, decision to exit the Iran nuclear accord, and retreat from global efforts to combat climate change, erstwhile American allies are turning the summit into something of an intervention, challenging the norm-breaking U.S. president in the most direct terms to date. 
 
 The summit threatens to mark the outer limit of international patience for the avowed nationalistic Trump, as leaders who had sought to cajole and "bromance" the president are embracing more hard-nosed tactics. 
 
 Before shortening his planned participation on the eve of his departure, Trump found himself publicly feuding with summit host, Canadian Prime Minister Justin Trudeau, and with French President Emmanuel Macron — two leaders who previously banked on flattery to win concessions with the American. 
 
 Trudeau has grown increasingly direct with his fury with Trump for imposing the tariffs on Canada's metals industries — and for justifying the protectionist move by calling those imports a threat to U.S. national security. 
 
 Under Trump, the United States has abandoned its traditional role in the G-7. American presidents from Reagan to Barack Obama pressed for freer global trade. And they championed a trading system that required countries to follow World Trade Organization rules. 
 
 Trump's policies, by contrast, are unapologetically protectionist and confrontational. To hear the president, poorly conceived trade deals and unfair practices by America's trading partners have widened America's trade deficit with the rest of the world — $566 billion last year — and contributed to a loss of millions of factory jobs. 
 
 Nelson Wiseman, a professor at the University of Toronto, said he can't recall relations between U.S. and Canada being worse. He said the G-7 meeting will appear to be six lined up against one. Indeed, on Thursday, French President Emmanuel Macron suggested in a tweet that Trump might not sign the final summit statement on G-7 priorities. 
 
 "The American president may not mind being isolated," Macron tweeted, "but neither do we mind signing a 6-country agreement if need be. Because these 6 countries represent values, they represent an economic market which has the weight of history behind it and which is now a true international force." 
 
 Trump offered his own digs the evening before his departure. 
 
 "Please tell Prime Minister Trudeau and President Macron that they are charging the U.S. massive tariffs and create non-monetary barriers. The EU trade surplus with the U.S. is $151 Billion, and Canada keeps our farmers and others out," he tweeted, adding, "Look forward to seeing them tomorrow." 
 
 Later, Trump tweeted, "Take down your tariffs & barriers or we will more than match you!" 
 
 White House officials said Trump in recent days had bristled at attending the summit, where he is set to be challenged face-to-face on his policy decisions. Among allies, there was even been speculation that Trump might walk out of the meetings — or even decide not to show up. Late Thursday, the White House announced he would be leaving the summit Saturday morning, after a session on women's empowerment but well before it wraps up. 
 
 "The President will travel directly to Singapore from Canada in anticipation of his upcoming meeting with North Korea's leader Kim Jong Un Tuesday," press secretary Sarah Sanders said. "G7 Sherpa and Deputy Assistant to the President for International Economic Affairs Everett Eissenstat will represent the United States for the remaining G7 sessions." 
 
 Trudeau has charged that he found the tariffs "insulting" and said such tactics are hardly how two close allies and trading partners that fought side-by-side in World War II, Korea and Afghanistan should treat one another. The Trump administration has also clashed with Canada over his insistence that the 24-year-old North American Free Trade Agreement involving the United States, Canada and Mexico be written to better serve the U.S. 
 
 The prime minister had at first refrained from criticizing Trump, apparently in the hope that he could forge a personal relationship that might help preserve the landmark free trade deal, a forerunner of which Reagan and Mulroney negotiated. Those two leaders became fast friends and famously sang "When Irish Eyes Are Smiling" together in Quebec City in 1985. 
 
 Trudeau's courting of Trump appeared to work for a time. The president had initially exempted Canada from the steel and aluminum tariffs in March. But Trudeau became exasperated and took a shot after Trump let the exemption expire last week. 
 
 "We'll continue to make arguments based on logic and common sense," he said, "and hope that eventually they will prevail against an administration that doesn't always align itself around those principles." 
 
 The prime minister had hoped to visit Washington last week to complete what he thought would be the final stages of the NAFTA renegotiation. But Vice President Mike Pence called and demanded he agree to "sunset clause" that would end NAFTA unless the three countries agreed to extend it every five years. 
 
 Trudeau refused, and he canceled the proposed visit. NAFTA talks stalled. Since then, Trump has sounded hostile at times toward Canada. 
 
 Given the conflicts between Washington and its allies, the most likely outcome of the G-7 talks, said William Reinsch, a trade analyst at the Center for Strategic and International Studies is "polite acrimony." 
 
 The United States has experienced tense relations with its allies before — over the Vietnam War, for example, over Reagan's decision to deploy Pershing II missiles in Europe and over President George W. Bush's invasion of Iraq. But Trump's moves — the tariffs and his decisions to pull out of the Paris climate agreement and the Iran nuclear deal, among other actions — have taken the hostility to heights. 
 
 "This is the first time the U.S. government is seen as truly acting in bad faith, in treating allies as a threat, in treating trade as negative and fundamentally undermining the system that it built," said Adam Posen, president of the Peterson Institute for International Economics. "This U.S. administration feels unbound by previous U.S. commitments in a way that no other administration has ever felt." 
 
 "Prime ministers are people, and he's insulted them," Reinsch said. "They're just not going to easily roll over when he punches them in the nose like that." 
 
 Canada and other U.S. allies are retaliating with tariffs on U.S. exports. Canada is waiting until the end of the month to apply them with the hope the Trump administration will reconsider. The Canadian tariffs would apply to goods ranging from yogurt to whiskey. 
 
 Trump has also mused about wanting to split up NAFTA and negotiating separate trade deals with Canada and Mexico in what Ujczo sees as a divide-and-conquer strategy. 
 
 Robert Bothwell, a professor at the University of Toronto, said Trump's actions appear intended to break Canada at the negotiating table. 
 
 "They are relying on the overwhelming strength of the U.S. to compel a much weaker neighbor to give in to whatever they demand," Bothwell said. "That brings in the real possibility of lasting damage to Canadian American relations." 
 
 Bothwell expects this to be Trump's only visit to Canada. He even wonders if it could be the last G-7 meeting for the president. 
 
 "We've not had an American president or administration like this in the post-war period," said Colin Robertson, a former Canadian diplomat. "I am worried because it is destructive to the rules-based international system that the Americans have been the guardian of." 
 
 ___ 
 
 Wiseman reported from Washington. AP Economics Writer Martin Crutsinger in Washington contributed to this report. ||||| President Donald Trump will depart Canada straight for Singapore, the site of his historic meeting with North Korean leader Kim Jong Un. | Kevin Dietsch-Pool/Getty Images Trump to depart G-7 summit early 
 
 President Donald Trump continued to criticize Canada early Friday morning after the White House announced he will leave the G-7 summit before its conclusion following a day of back-and-forth with fellow world leaders that foreshadowed confrontations during the meeting of the world's largest advanced economies. 
 
 Trump will be depart the summit in Quebec at 10:30 a.m. Saturday and head directly to Singapore, the site of his June 12 meeting with the North Korean leader, Kim Jong Un, White House press secretary Sarah Huckabee Sanders said in a statement. The G-7 summit is scheduled to wrap up later on Saturday. 
 
 Story Continued Below 
 
 Before the Thursday night announcement, President Emmanuel Macron of France and Prime Minister Justin Trudeau of Canada both promised to confront Trump over his recent decision to impose tariffs on U.S. allies. 
 
 Trump, in response, laid into the two leaders on Thursday evening and Friday morning over those plans. 
 
 Sign up for Morning Trade A speed read on global trade news — weekday mornings, in your inbox. Email Sign Up By signing up you agree to receive email newsletters or alerts from POLITICO. You can unsubscribe at any time. 
 
 “Please tell Prime Minister Trudeau and President Macron that they are charging the U.S. massive tariffs and create non-monetary barriers,” Trump wrote on Twitter. “The EU trade surplus with the U.S. is $151 Billion, and Canada keeps our farmers and others out. Look forward to seeing them tomorrow.” 
 
 On Friday a little after 6 a.m., he tweeted, “Canada charges the U.S. a 270% tariff on Dairy Products! They didn’t tell you that, did they? Not fair to our farmers!” and “Looking forward to straightening out unfair Trade Deals with the G-7 countries. If it doesn’t happen, we come out even better!” 
 
 By pulling out early, Trump will skip sessions focused on climate change, the oceans and clean energy. He will also miss the traditional group-photo opportunity among fellow heads of state. The president may also miss the opportunity to host a summit-ending news conference, something world leaders traditionally do. The leader of the host nation, in this case Trudeau, also takes questions and gives closing remarks. Trump chose not to hold a news conference last year, becoming the only G-7 leader not to do so before leaving Italy, according to The Hill. He opted instead for a speech at a nearby naval air station. 
 
 The summit traditionally concludes with a joint statement spelling out the areas of agreement on the wide range of policy issues discussed. But before Trump's announcement, Macron urged the other five nations to hold strong and not let potential U.S. opposition water down their communiqué. 
 
 The 2017 statement, for example was notable for its explicit mention that the U.S. did not share its allies‘ support of the Paris Climate Accord. Less than a week later, Trump announced in the White House Rose Garden that the U.S. would be exiting the climate agreement. 
 
 “Maybe the American president doesn’t care about being isolated today, but we don’t mind being six, if needs be,” Macron said, part of his plea to confront Trump head-on. 
 
 Trump later upped the ante, accusing Trudeau of being “so indignant” on the topic. The U.S. and its allies have been at loggerheads in recent days as the EU, Canada and Mexico continue to bristle over the president’s decision to levy 10 percent tariffs on aluminum imports and 25 percent tariffs on steel imports from the two countries and Europe. The move, which reportedly came with little warning, has also caused Republicans on Capitol Hill to consider reining in Trump’s trade powers. 
 
 Suggesting that the world powers could continue on without the U.S. is a stark departure from the chummy relationship Macron and Trump had during the French president’s state visit to Washington in April. 
 
 For his part, Trudeau continued to call the tariffs “ridiculous.” Last week, he repeatedly invoked the fact that Canadians fought alongside U.S. soldiers in Afghanistan in characterizing Trump’s decision as a slap in the face. 
 
 The thought of allies ganging up on him has reportedly left Trump uneasy about attending the summit. But for now, Trudeau says that he expects his American counterpart to show up. 
 
 “We know that President Trump likes to be unpredictable," the Canadian leader said on Thursday, "but everything suggests that he will be there for the G7 summit, including his tweets this morning." 
 
 
 
 CORRECTION: An earlier version of this article incorrectly described the format for the closing news conference of the G-7. Prime Minister Justin Trudeau of Canada is set to give his own, and other leaders traditionally follow suit.
– The traditional end-of-summit group photo at this year's G7 gathering will not include President Trump. The White House says Trump will leave the Quebec summit on Saturday morning and travel directly to Singapore, where he is due to meet Kim Jong Un June 12, Politico reports. The summit is scheduled to conclude hours after Trump's departure and he will miss sessions on issues including climate change and the oceans. The president will travel to the Quebec resort of La Malbaie Friday, the AP reports. His first trip to Canada as president comes as disputes with both Prime Minister Justin Trudeau and France's President Emmanuel Macron are heating up. Both leaders have said they will confront Trump at the summit over new tariffs imposed on US allies in the name of "national security." Trudeau and Macron "are charging the U.S. massive tariffs and create non-monetary barriers. The EU trade surplus with the U.S. is $151 Billion, and Canada keeps our farmers and others out. Look forward to seeing them tomorrow," Trump tweeted Thursday. In another tweet, he said Trudeau "is being so indignant, bringing up the relationship that the U.S. 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% on dairy — hurting our Farmers, killing our Agriculture!" A third tweet warned the EU and Canada to "Take down your tariffs & barriers or we will more than match you!" Earlier Thursday, Macron said that the other six countries may end up signing an agreement that doesn't include the US. (Trump reportedly brought up a War of 1812 incident when discussing new tariffs on Canadian steel.)