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WASHINGTON/STRASBOURG – US President Donald Trump is hardening his tone towards Europe. Should the planned closer alignment between Canada and the European Union be directed against the United States in his view, he is threatening the EU with “very high tariffs” and restrictions on trade. The trigger is a surprise initiative by European Commission President Ursula von der Leyen to make Canada the first “associate member” of the European Union. The conflict shows how profoundly relations between Washington, Ottawa and Brussels have changed – and comes at a time when the reach of Trump’s tariff policy is being contested within the United States as well.
Trump reacted sharply on Wednesday evening to the initiative from Brussels. Asked by reporters about a possible associate membership for Canada, he called the idea “ridiculous.” Should he regard it as a hostile step, Washington would respond.
“If they do that, if I think it’s at all a hostile act, I will put very serious tariffs or stop trading with Europe on many things,” Trump said. He added: “If it’s a good intention, that’s fine. If it’s a bad intention, we’ll put very heavy tariffs on Europe.”
The president is thus explicitly holding out the prospect of additional trade barriers, even though it remains unclear what legal form such a partnership between Canada and the EU would take, or what concrete economic rights would be attached to it. What stands out above all is the political dimension of the threat. It is aimed not at a geopolitical adversary of the United States, but at two of its traditionally closest partners: Canada and Europe.
Von der Leyen opens the door to Canada
The starting point of the dispute was von der Leyen’s State of the European Union address on Wednesday in Strasbourg. Canadian Prime Minister Mark Carney was seated in the European Parliament during the speech.
“I would like to work with you on opening the door for Canada to be the first associate member of the EU,” von der Leyen said. The announcement was met with a standing ovation from numerous members of parliament.
At the same time, the Commission President sought to counter the impression that the initiative was directed against Washington. “This is not a partnership against anyone else, but for our common strength,” she said. Von der Leyen pointed to potential shared interests in technology, artificial intelligence, defence, critical raw materials, energy, supply chains and the Arctic. She was particularly explicit about the political foundation of the intended cooperation: “Above all, dear Mark, Europe and Canada believe in democracy.”
The initiative fits into a broader European strategy. Von der Leyen framed her speech around greater European self-reliance. “In this world, Europe has chosen to forge its own path,” she said. Faced with a changed international order, Europe must have a greater say in its own economic and security future.
What an “associate membership” for Canada would mean in practice, however, remains open. No such status exists in the EU’s current institutional structure. Nor is regular membership for Canada provided for under the existing European treaties, since Article 49 of the Treaty on European Union opens accession to European states. The proposal is therefore, for now, primarily a political signal. It shows how far Brussels and Ottawa are now prepared to go in considering new forms of cooperation.
Canada’s relationship with Washington has changed
The rapprochement with Europe can hardly be separated from the development of American-Canadian relations during Trump’s second term. Trump had repeatedly suggested that Canada could become the 51st state of the United States. What was partly understood in Washington as provocative negotiating tactics triggered considerable political backlash in Canada. At the same time, the US administration increased economic pressure on Ottawa.
James Batchik of the Atlantic Council’s Europe Center described Canada’s closer alignment with Europe as a “direct consequence of Trump’s actions and rhetoric.” The debate over Canada as a 51st state, along with Trump’s earlier threats concerning Greenland, had changed the political climate on both sides of the Atlantic.
Canadian-European cooperation now extends well beyond classic trade questions. Ottawa and Brussels are discussing defence, critical raw materials, energy supply, technology and the strategic importance of the Arctic. An EU-Canada summit at the end of October is expected to provide further detail.
Liana Fix of the Council on Foreign Relations sees in this a signal from what are known as middle powers. States and groups of states such as Canada and the European Union are seeking to widen their room for manoeuvre vis-à-vis the major geopolitical power centres. This does not amount to a complete break with the United States. Both Canada and the EU remain closely tied to Washington economically and in security terms. Yet both are visibly looking for ways to reduce dependencies.
A model that does not yet exist
That is precisely what makes the term “associate membership” politically interesting – and, in legal terms, so far imprecise. “Associate membership does not exist,” says Tinatin Akhvlediani of the Centre for European Policy Studies. That means Brussels and Ottawa would have to create a new institutional framework or substantially extend existing instruments of European external relations.
Conceivable options include additional trade facilitation, closer integration on energy and critical raw materials, joint investment in technology and AI infrastructure, and deeper cooperation on defence and cybersecurity. Questions of mobility could also become part of future negotiations.
The economic foundation for this is already substantial. Trade in goods and services between Canada and the EU reached 130.8 billion euros last year, according to the European Commission. Trade volume has thus risen considerably over the course of a decade. Canada’s decisive economic dependence, however, remains on the United States. Around 70 percent of Canadian exports go to the American market. It is precisely this dependence that Prime Minister Carney is seeking to reduce.
Ottawa looks for economic alternatives
At the same time, Carney is making clear that Canada is not pursuing regular membership of the European Union.
“We’re not looking to become a member of the European Union,” the Prime Minister said. The aim, he said, is a special partnership whose precise structure has yet to be negotiated.
The strategy behind it is clearer than its institutional form: Canada wants to diversify its trade relations and make itself economically less dependent on political decisions in Washington. The conflict has escalated considerably in recent months. After trade negotiations collapsed, the Trump administration imposed 50 percent tariffs on certain Canadian products in August. Canada responded with counter-tariffs.
On Wednesday, Washington increased the pressure further. Trump signed a memorandum aimed at excluding Canadian goods from parts of US federal procurement. The White House justified the step by pointing to what it regards as discriminatory treatment of American suppliers by Canada.
Ottawa’s rapprochement with Europe is therefore not taking place in a political vacuum. It is part of a trade conflict that now extends well beyond individual goods and tariff rates. What began as a trade dispute has increasingly become a strategic question: how closely does Canada want to remain bound to the United States over the long term?
Democrats criticize Trump’s tariff course
Domestically, too, Trump’s new threat comes at a sensitive moment. Congress is already contesting how far the president’s powers should extend in imposing tariffs. No comprehensive immediate response from leading Democrats and Republicans specifically to the EU threat issued hours earlier was initially available. The political battle lines on the underlying tariff question, however, were already apparent on Wednesday.
Senate Democratic Minority Leader Chuck Schumer attempted to advance legislation that would end Trump’s global tariffs and in particular the 50 percent tariffs against Canada, or restrict the scope for further unilateral trade measures. Republican Senator Mike Crapo of Idaho blocked the move. Schumer and other Democrats argue that the costs of tariffs are borne at least in part by American importers, businesses and ultimately consumers. The Senate Democratic caucus on Wednesday described Trump’s course as a “costly and chaotic trade war.”
In parallel, the House of Representatives was debating additional tariff powers for Trump – there, however, in connection with a sanctions package against Russia and Iran. Democratic Minority Leader Hakeem Jeffries opposed granting the president still broader authority.
“Why in the world would this Congress give this president additional authority to visit that kind of economic harm on the American people?” Jeffries said during the debate.
His statement did not refer directly to Trump’s subsequent threat against the EU. It does, however, illustrate the central line of conflict: many Democrats regard the White House’s extensive use of tariffs as an economic risk and want to place tighter limits on the president’s room for action.
Republicans see tariffs as political leverage
On the Republican side, by contrast, there is strong support for using tariffs as an instrument of foreign and security policy in principle. That does not mean, however, that the party stands united behind Trump on every individual trade decision. This stance was particularly evident on Wednesday during the debate on Russia sanctions. Republican Representative Don Bacon of Nebraska defended the option of exerting economic pressure on states financing Russia’s war.
“Choking off the money funding a war of conquest in Europe is exactly what that authority should be used for,” Bacon said. Congress, he argued, was thereby exercising its constitutional responsibility.
Bacon’s statement, too, did not refer to the specific threat against the European Union. But it shows why the dispute over tariff authority does not run entirely along traditional party lines.
Some Republicans regard tariffs as a legitimate means of pursuing foreign policy objectives. Other lawmakers in both parties view the question more critically as soon as close trading partners are affected or economic burdens at home are feared. The debate is therefore shifting. It is no longer only about whether Washington should use tariffs, but increasingly about against whom, for what purpose and within what legal limits.
The economic risks lie in the United States as well
The trade dispute with Canada has a domestic dimension that is far from trivial for the White House. Canadian counter-tariffs can hit export-oriented states in particular. These include Ohio, Pennsylvania and Michigan, whose companies are closely embedded in North American supply chains. Many production processes in the automotive, machinery and metal industries cross the American-Canadian border several times before a finished product is sold.
For Republicans, this also matters with a view to the congressional elections. The economic effects of tariffs are especially visible in industrial states. Trump nonetheless sticks to the basic premise of his trade policy: tariffs are meant to push foreign governments towards concessions, protect American production and generate additional revenue.
His threat against Europe broadly follows this logic – but with one decisive difference. This time the issue is not, at least initially, a specific tariff rate, a particular product or a trade deficit. Trump explicitly ties the possible economic sanction to his political assessment of a foreign policy decision between Canada and the European Union.
Whether a Canadian-European partnership has a “good” or “bad” intention, the president left open. A possible American response therefore depends, for now, on his political interpretation of the initiative.
Brussels and Ottawa expand their cooperation
Von der Leyen and Carney, for their part, present their plans as an attempt to increase the economic and strategic resilience of both sides. The Commission President is calling for new partnerships in an increasingly confrontational international order. Europe and Canada, in her view, share interests ranging from artificial intelligence and energy through the Arctic to defence, raw materials and supply chains.
Carney’s government welcomed the proposal for a “far stronger, more ambitious alliance in the future.” Canada and Europe should strengthen their strategic autonomy through closer cooperation on critical capabilities.
The Canadian Prime Minister has set out the underlying strategy before: middle powers must work together more closely, because otherwise they would have only limited influence over the decisions of the major powers.
The EU, too, has been seeking for some time to expand its economic and security capacity to act. This does not necessarily mean turning away from the United States. Washington remains a central security partner for Europe and one of its most important economic partners. But the political direction is discernible: both Brussels and Ottawa want to have alternatives available when Washington exerts economic or political pressure.
From trade dispute to strategic conflict
For now this remains a threat, not a new American tariff decision against the European Union. Trump himself made any response conditional: what matters is whether he assesses the European-Canadian initiative as a hostile act towards the United States.
Canada’s “associate membership,” too, is so far more a political concept than a worked-out institutional plan. Considerable clarification is still needed even within Europe. One European diplomat summed up the uncertainty in a short formula: “Nobody really knows what it means.” Even so, the announcement has already set a new diplomatic dynamic in motion.
Canada is looking for ways to reduce its enormous economic dependence on the United States. The European Union is looking for partners to expand its strategic independence. Washington, in turn, is signalling that it does not automatically regard such a realignment as a neutral development.
