GOP presses Trump trade chief on Canada tariffs amid looming retaliation

House Republicans pressed U.S. Trade Representative Jamieson Greer at a closed-door Capitol Hill lunch to gauge the potential harms of the Canada-U.S. tariff fight, as Canada plans dollar-for-dollar retaliation on Sept. 8; lawmakers from northern border states and Michigan raised concerns about local economies and messaging, while beef-import proposals and other tariff issues were discussed; Greer said he answered questions and indicated follow-ups are likely, and leaders stressed the need to negotiate in good faith.