Trump's Canadian auto tariffs threaten US jobs and industry

President Donald Trump threatened 50% tariffs on all Canadian auto imports Monday, escalating trade tensions and risking major disruption to the integrated North American auto industry. Experts warn the tariffs could force plant closures on both sides of the border, harming US jobs since Canadian-built cars rely heavily on American parts and Canadian buyers purchase hundreds of thousands of US-assembled vehicles annually. The US currently holds a nearly $1 billion monthly auto trade surplus with Canada, and industry groups say breaking the long-established cross-border supply chain would hurt workers and consumers in both countries.