Renewed tit-for-tat tariffs between the United States and Canada threaten acute economic fallout in competitive midterm battleground states, particularly in regions dependent on cross-border manufacturing, supply chains, and tourism, according to recent trade data and economic analyses.
Trade Dispute Threatens Key Congressional Battlegrounds
Recent levies on billions of dollars in cross-border goods risk outsized harm for consumers and businesses in states near the northern border, analysts told ABC News. Many of those states host critical congressional races in the midterm elections, including high-stakes Senate contests in Maine, Ohio, and Michigan. Fresh levies on $20 billion in Canadian goods are expected to hike prices for imports ranging from orchids to hockey sticks, which are sold predominantly in border states, according to analysts.
Matching retaliatory tariffs that took effect on Tuesday may also crimp sales for U.S. businesses exporting products to Canada. Additionally, a drop in cross-border tourism could damage companies operating within a short drive of the international boundary.
“If you go far up north, it’s an arbitrary line in the dirt between what’s in Canada and what’s in the U.S.,” Tyler Schipper, a professor of economics at the University of St. Thomas in Minnesota, told ABC News.
Geographic Concentration of Cross-Border Commerce
While current levies apply to a relatively small portion of goods traveling between the two nations—limiting the overall macroeconomic impact—the localized effects will hit border states hardest. The tariffs issued in recent weeks apply to just 6% of U.S. imports into Canada and 5% of Canadian imports into the U.S., according to economic assessments.
However, Canada remains the top foreign buyer of exports from 26 U.S. states and the primary source of imports for 22 states, based on an analysis of U.S. Census Bureau data issued by the Royal Bank of Canada (RBC). Maine and Michigan rank among the top 10 states in combined annual import-export business with Canada, while Ohio ranks 15th. Montana, North Dakota, and Minnesota also rank among the top states on the measure.
“Someone in Oklahoma doesn’t feel this as much as someone in Dearborn, Michigan,” Jason Miller, a professor of supply chain management at Michigan State University, told ABC News, referencing a major hub of the U.S. auto industry. “It’s purely a geography story.”
Impact on Manufacturing and Regional Supply Chains
In Michigan, the automotive sector has already felt the pressure of trade friction. Car companies face additional fallout from any potential escalation of the dispute, according to Glenn Stevens Jr., executive director of MichAuto, a statewide industry trade group.
Last spring, the U.S. implemented 25% tariffs on imported cars and auto parts, straining the highly integrated supply chain linking the U.S., Mexico, and Canada. While that measure excluded goods compliant with the United States-Mexico-Canada Agreement, ongoing trade volatility continues to disrupt regional manufacturing planning.
Tourism Volatility in Border Small Businesses
Small enterprises relying on cross-border visitors are navigating similar uncertainty. Garret Denniston, chief executive of Barters Island Bees, a honey seller in Maine featuring flavors like “Gentle Ginger” and “Blueberry Lemon,” experienced direct consequences from past tourism drops.
Sales shrank last year following a decline in Canadian visitors that hammered business at farmers’ markets and fairs, Denniston told ABC News. Although revenue rebounded—surging 75% this year compared to the same period in 2025 due to an uptick in Canadian customers as tensions initially thawed—Denniston warned that a rekindled trade spat could curtail tourism once again.
“We thank Canadian tourists every time we see them,” Denniston said. When asked whether the trade dispute could shape Maine’s competitive Senate contest, he added, “Oh, absolutely. It definitely can.”
Worth a look