The 30-day warning of new tariffs from U.S. President Donald Trump’s administration has thrown a wild card into the annual conference of premiers and territorial leaders.

The tariffs will apply to goods covered by the Canada-U.S.-Mexico Agreement, escalating a trade dispute the White House says stems from Canada's policies targeting American autos,…

WASHINGTON - U.S. President Donald Trump is signing an executive order today to hammer certain Canadian products with 50 per cent tariffs in 30 days, senior White House officials…

US claims ‘unfair treatment’ of alcohol, cars and dairy