“Canada wants the benefits of being a State, without being one!!!” Trump said in a social media post on Sunday.

Might the levies also have something to do with Canadian Prime Minister Mark Carney’s refusal to suck up to Trump? Don’t answer; that was a rhetorical question.

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The president’s preoccupation with Canada — he says it should be the 51st state — would be laughable if the country weren’t Massachusetts’s and New England’s largest trading partner.

Thankfully, this round of tariffs is relatively small and energy, the state’s largest Canadian import, is exempt. Trump is especially sensitive to gasoline prices after the spike caused by his unsuccessful war against Iran.

But many Canadian agricultural goods and lumber products are affected. And, perhaps more important than the immediate financial impact, the deteriorating relationship between the two countries doesn’t bode well for our region’s economy and longstanding ties to Canada.

The latest: The administration imposed the new duties — covering about 5 percent of Canada’s US exports — after trade negotiations collapsed late Friday.

The administration said it was acting in response to what it called Canada’s discriminatory treatment of US exports of dairy, alcoholic beverages, and motor vehicles.

The hodgepodge list of hundreds of affected imports includes those sectors, as well as textiles and clothing. But many, um, peculiar items have also been targeted: tongue depressors, molasses, and horsehair and horsehair waste, to name just a few.

Step back: The move comes on top of other current tariffs against Canada.

The country, like nearly every US trading partner, is subject to a 10 percent surcharge on exports to America, with the exception of products covered under the US-Mexico-Canada trade pact.

Trump, citing national security concerns, also imposed separate duties on steel, aluminum, autos, and lumber.

“They’ve always had the best [trade] deal, and they still would have an even better deal, but they didn’t want that,” Jamieson Greer, the US trade representative, said, referring to the failed negotiations with Canada.

Carney vowed to retaliate “dollar for dollar” starting Sept. 8.

The local angle: Canada accounted for about a quarter of Massachusetts’ $43 billion of goods imports last year, according to US Census Bureau data.

As noted, energy, which accounts for 36 percent of Massachusetts’ Canadian imports, is not on the tariff list.

But other top import categories are, including agricultural goods (27 percent) and forest products (9 percent). Higher prices for some food and lumber are possible.

Carney said Canada’s retaliatory tariffs would focus on sectors including steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics.

That might hurt some of Massachusetts’ larger exports to Canada: optical, medical, and precision instruments; computers; plastics; pharmaceuticals; aircraft and parts; and paper and paperboard. About 8 percent of the state’s $33.8 billion in product exports go to Canada.

What’s next: Trump is still miffed that eight Canadian provinces banned US alcohol imports in 2025 after he upped the volume on his “51st state” nonsense and imposed tariffs in violation of the free trade agreement between the two countries and Mexico.

Canadians, whose attitudes toward the administration have only hardened since then, aren’t going to back down — even if the United States buys nearly three-quarters of their exports and is the source of nearly half their imports. They figure Trump and his tariff fixation will be history in two years.

“We cannot accept what they’ve offered, and we will not give what they’ve asked,” Carney said on Saturday. “Our goal has always been to get the best deal for Canadians, never a deal at any price or any time frame.”

Although its economy is less than one-10th the size of the United States’, Canada has some leverage in this trade fight. It is the largest foreign supplier of energy to America and the second-largest source of direct foreign investment.

Final thought: Stymied by Iran in the Persian Gulf, he’s desperate for a win on trade.

While Canada and the United States have deep economic and cultural ties, Trump doesn’t care.

“We’ve recognized from the start that America has changed,” Carney said. “We recognize that sometimes, its signature is written in pencil.”

Oh, Canada, with an ally like Trump, who needs enemies?

Larry Edelman can be reached at larry.edelman@globe.com.