Jon Tester, the senator who looks least like a senator, sized up a crowd of dozens and got to talking about history.
He joined local veterans last week in a creaky hotel ballroom, with his $12 flattop haircut and scuffed black shoes, and spoke of the copper mines up the road, sustaining the nation in wartimes. He saluted Montana’s tradition of bipartisanship, recalling his work, as a Democrat, with President Trump. “The key word is ‘together,’” Mr. Tester said.
Once considered a favorite in the contest for his Senate seat in Montana, Mr. Tester is now at risk.