Trump's Canada trade war threatens GOP in key Senate races

President Donald Trump's escalating trade war with Canada threatens Republican efforts to address economic concerns ahead of midterm elections, where control of the U.S. Senate hinges on border states. Trump raised tariffs on $20 billion in Canadian imports after negotiations broke down, with Canada planning retaliatory tariffs Tuesday. Republican Sen. Susan Collins of Maine, a top Democratic target, called the tariffs a mistake, citing impacts on lobsters, blueberries, and lumber. The dispute pressures Republicans in Michigan, Ohio, and Alaska, while Democrats seek to capitalize. Michigan's Democratic nominee Abdul El-Sayed called it "a trade war with Canada for his own vanity." Trump defended the tariffs on Truth Social, claiming "WE DON'T NEED CANADA, THEY NEED US!" Vice President JD Vance visited Maine to reassure voters, though Collins campaigned separately. Former Ohio Sen. Sherrod Brown and other Democrats are using the issue to argue Trump's policies raise costs for Americans.