On the northeast edge of Michigan’s Upper Peninsula, nearly 1,100 people gathered in late June for the International Bridge Walk across the long span that links two cities with the same name: Sault Ste. Marie, Michigan, and Sault Ste. Marie, Ontario. Both the sun and the sentiments were bright.

“We don’t like to say there’s a border there, because we’re twin cities. We’re one family, the countries of Canada and the United States,” Don Gerrie, mayor of the Michigan Sault (pronounced “Soo”), told the crowd ahead of the annual walk.

He sported a black ballcap that he said was given to him by his counterpart in the Ontario Sault. It featured flags from both nations with the words “Stronger Together” and “Allies and Friends.”

Canadians in cheerful patriotic attire joined the bridge walk, with maple leaves tagging their scarves and socks, shirts and shorts. Americans came out in star-spangled T-shirts heralding the nation’s 250th birthday. But this lively tradition is clouded by an increasingly hostile relationship between the U.S. and Canada.

Traffic over the bridge is way down. And, in recent weeks, President Donald Trump threatened new tariffs in retaliation for thick wildfire smoke wafting into the U.S. When his administration announced an additional 50% tariff on an array of Canadian products, the White House cited “Canada’s discriminatory treatment of American products.” Then, using a separate mechanism, it hit Canada with a further 10% in tariffs.

Following pressure from the Trump administration that delayed it, a new publicly owned bridge, the Gordie Howe, opened Monday between Detroit and Windsor, Ontario. Canada hosted a Canada-only opening ceremony.

Trump wasn’t present for the bridge’s ribbon-cutting, even though he used to cheer the project. Up at the Sault bridge, there was no sign of the region’s congressional representative at the celebration of international friendship, even though, during Trump’s first term, Rep. Jack Bergman, a Republican, hailed relations with Canada.

In 2020, when Bergman was appointed to an interparliamentary group that provides a forum for exchange between Canadian and American legislators, he boasted of the Sault bridge as a point where “millions” cross every year “to conduct business, shop, work and enjoy what each country has to offer.”

Yet Bergman, who is endorsed by Trump in an upcoming contested primary, has been virtually silent on the new tariffs and their blowback in local communities, even as he’s prodded to speak out by many of his constituents. The only references to Sault Ste. Marie in the news items on his website during Trump’s second term are a mention of an infrastructure project and a February 2025 letter to the president about a purported member of a Venezuelan gang crossing the border.

As Canada responds to Trump’s moves with emergency interventions and “buy local” boosterism, significantly fewer Canadians are crossing the border for once-ordinary activities: shopping, eating, fueling vehicles,........

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