Republican candidates in some of the nation's most competitive races are treading carefully as local industries brace for President Trump's tariffs.

Canada has traditionally been the world’s No. 1 purchaser of U.S. exports. But relations between the two neighbors have been deteriorating for more than a year, as Washington has repeatedly accused Ottawa of what it says are unfair trade practices.

President Trump’s levies on a long, eclectic list of products from Canada has companies scrambling to figure out of their supply chains are affected.

Ontario Premier Doug Ford says he hopes Republicans lose the House and Senate in the midterms to hold President Donald Trump accountable for the trade war with Canada.

The US-Canada trade war is straining Iowa's economy, affecting farmers' crop sales, truck drivers' fuel costs and small businesses facing steep tariffs on goods.

President Donald Trump has escalated his economic pressure against Canada following its retaliatory tariffs against the U.S.

Republicans pushed back against Trump's call to ban sales by Québec-based aerospace giant Bombardier.