Trump’s 50% Canadian Auto Tariff Opposed Nearly 2-to-1 in Five Key U.S. States, New Poll Finds

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President Donald Trump’s planned 50% tariff on Canadian-made cars, trucks and automotive parts is running into a problem south of the border: many American voters do not appear convinced it will help them. Fresh polling across Iowa, Michigan, Ohio, Maine and South Carolina finds the automotive tariff opposed by roughly two voters for every one who supports it.

The timing raises the stakes. Trump announced that the auto levy would rise from 25% to 50% beginning January 1, 2027, after Canada-U.S. trade negotiations collapsed in August. The five states examined represent very different economies, but each has meaningful commercial ties to Canada. From Michigan assembly plants and Ohio suppliers to Iowa farms and South Carolina factories, the findings suggest that the political cost of escalating the trade dispute could increasingly be felt inside the United States itself.

Iowa Shows Why the Tariff Debate Extends Far Beyond Cars

Iowa might seem like an unusual place to test public reaction to a Canadian automotive tariff. It is better known for corn, soybeans, pork and agricultural machinery than vehicle assembly. Yet that is precisely what makes its inclusion important. Abacus Data questioned 500 registered voters in Iowa as part of its five-state research conducted from August 26 to 28. Only 34% approved of Trump’s handling of trade with Canada, compared with 40% who approved of Trump overall. That six-point difference suggests some voters who are otherwise receptive to the president are less comfortable with the direction of the Canadian trade fight. Across the five states, the proposed 50% automotive tariff was opposed by roughly two to one.

Canada also occupies an unusually large place in Iowa’s real economy. U.S. Trade Representative data show that Iowa exported about $5 billion in goods to Canada in 2025, representing roughly 30% of the state’s goods exports. Canada was Iowa’s single largest export market. Agriculture and Agri-Food Canada separately estimates that bilateral agriculture, agri-food and seafood trade between Iowa and Canada reached approximately C$3 billion in 2025. For a farming or manufacturing community, trade policy therefore reaches much further than the sticker price of a Canadian-built vehicle. A prolonged dispute can affect export customers, machinery supply chains and agricultural inputs while increasing uncertainty for businesses deciding what to plant, produce or invest in. That helps explain why an auto tariff can become politically relevant even hundreds of kilometres from Detroit.

Michigan Turns the 50% Tariff Into a Kitchen-Table Economic Question

Michigan presents the clearest test of whether a tariff intended to encourage American manufacturing can become unpopular in the very communities it is supposed to protect. In the new five-state polling, approval of Trump’s handling of trade with Canada stood at just 27% in Michigan, compared with 36% approval of Trump himself. The nine-point gap was among the largest measured. It also follows earlier Michigan-specific research by EPIC-MRA that found 63% of voters opposed tariffs on automotive and manufacturing parts imported from Canada, while 31% supported them. Nearly half were strongly opposed. The earlier poll also found 74% believed tariffs were contributing to affordability problems and 76% said American consumers bear most of the cost.

Those concerns reflect the structure of Michigan’s economy. Canada was Michigan’s largest foreign market in 2025, buying more than $23 billion in goods according to updated U.S. Trade Representative figures. Transportation equipment alone represents tens of billions of dollars in Michigan exports. The relationship is especially complicated because the automotive border is not simply a line separating Canadian producers from American producers. Engines, transmissions, components and unfinished vehicles move through an integrated network involving plants on both sides. Reuters reported that Canadian-built vehicles accounted for about 6% of U.S. vehicle sales in 2025, while companies including General Motors, Ford, Stellantis, Toyota and Honda maintain production systems spanning the border. When a tariff affects an Ontario vehicle or component, the financial consequences can therefore arrive at a Michigan supplier, dealership or assembly operation. For many voters, the debate is less about protecting one country from another than about whether a tightly integrated industry can absorb another major increase in costs.

Ohio Voters Are Watching a Trade Fight That Reaches Deep Into Manufacturing

Ohio offers another revealing example because it combines electoral importance with one of America’s largest manufacturing economies. Abacus Data found approval of Trump’s handling of trade with Canada at 30% in the state, nine points below his 39% overall approval rating measured in the same research. That does not mean every Ohio voter rejecting the administration’s trade approach is rejecting tariffs altogether. It does suggest, however, that Canada-specific trade policy is performing worse politically than Trump himself. The distinction matters because the administration has argued that higher duties can encourage production to relocate into the United States, while opponents warn that businesses using Canadian components can face higher costs long before new American factories appear.

Ohio’s industrial exposure makes that argument tangible. U.S. Trade Representative data show that Canada purchased approximately $18.3 billion of Ohio goods in 2025, about 32% of the state’s total goods exports and more than any other country. Transportation equipment was Ohio’s largest manufacturing export category, worth roughly $18.8 billion. Canadian government trade data also show significant shipments of Canadian heavy-duty trucks into Ohio, illustrating that vehicles and components move through the regional economy in both directions. The concern is not simply that an imported product may become more expensive. Modern manufacturing frequently depends on intermediate goods that become inputs for something made domestically. Recent economic research reinforces that point. A 2026 NBER study examining U.S. tariffs found that higher duties can affect domestic prices indirectly when manufacturers face more expensive imported inputs and when reduced foreign competition creates room for domestic prices to rise. In a manufacturing state such as Ohio, those indirect effects can matter as much as the tariff at the border.

Maine Demonstrates That Canada Trade Politics Are Not Just a Midwest Story

Maine lacks Michigan’s sprawling automotive industry, but its relationship with Canada is arguably even harder to separate from daily economic life. The Abacus Data research put approval of Trump’s handling of Canada trade at 30% among Maine respondents, versus 36% approval of Trump overall. The broader five-state finding showed the planned 50% Canadian automotive tariff losing by roughly two to one. That matters in Maine because Canada is not a distant overseas supplier. Communities, businesses and transportation networks operate alongside a shared border, while industries including seafood, forestry, paper, tourism, energy and manufacturing depend on cross-border commerce.

Government trade figures underline that dependence. Maine exported about $3.2 billion in goods worldwide in 2025, and approximately $1.3 billion of that went to Canada. In other words, Canada accounted for roughly 41% of Maine’s total goods exports and was by far the state’s largest foreign customer. Transportation equipment was also Maine’s largest manufacturing export category, worth about $752 million. More than 1,600 companies exported goods from Maine in the latest available business data, with small and medium-sized firms accounting for the overwhelming majority of exporters. That makes unpredictability particularly difficult. A multinational manufacturer may have legal teams and sophisticated hedging strategies to absorb trade disruptions; a family-owned exporter, seafood operation or regional supplier usually has fewer options. The auto tariff is therefore part of a bigger political question in Maine: whether escalating the dispute with Canada improves economic security enough to compensate for the uncertainty created across a relationship that touches an unusually large share of the state’s trade.

South Carolina Suggests the Resistance Is Broader Than the Northern Border

South Carolina may be the most politically significant result for anyone tempted to dismiss opposition to the Canadian tariff as a phenomenon limited to Democratic-leaning states or communities beside the border. Among the five states examined, Trump’s overall approval was highest in South Carolina at 46%. Yet approval of his handling of trade with Canada was only 34%, producing a 12-point gap — the largest of the five states in the Abacus Data comparison. The planned Canadian vehicle tariff was part of a broader package of trade policies that the research found to be an electoral liability across every state tested. South Carolina therefore illustrates how a voter can support Trump generally while questioning a particular element of his economic strategy.

The state also has substantial automotive interests of its own. South Carolina exported approximately $38.6 billion of goods in 2025, and transportation equipment accounted for more than $20 billion — over half of the state’s goods exports. Canada was South Carolina’s third-largest export market at roughly $4.1 billion, behind Germany and Mexico. Its manufacturing base includes global automakers and an extensive supplier network competing for investment in an industry where production decisions are measured in years rather than weeks. That matters when evaluating the idea that a 50% Canadian tariff could simply push assembly south of the border. Building or expanding automotive plants requires billions of dollars, skilled workers, suppliers, tooling and extensive logistics planning. Reuters has reported that the threatened tariff particularly exposes Toyota and Honda because the companies account for more than three-quarters of Canadian vehicle production. The political message from South Carolina is therefore notable: even in a strongly manufacturing-oriented state where domestic production is prized, voters do not automatically appear persuaded that substantially higher barriers against Canadian automobiles are the best way to strengthen it.

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