PORTLAND, Maine (AP) — President Donald Trump’s trade war with Canada is escalating as the midterm elections approach, threatening Republican efforts to address voters' economic concerns in a year when

CHICAGO (AP) — President Donald Trump's barrage of tariffs — and threats of even more — has strained the United States' longstanding relationship with Canada.

The tariff criticism from Democrats is part of a larger strategy focused on tapping into voter anxieties about the economy.