US Trade Representative Jamieson Greer said Canada was "continuing its retaliation against the US," minutes before fresh Trump tariffs were due to come into effect. Canada says the terms proposed were "unfair."

Businesses have warned that Trump's new 50% duties could cripple U.S. their sales if they take effect.

WASHINGTON/OTTAWA -- The United States and Canada failed to reach a trade deal on Friday, and the White House said that it would impose 50-percent tariffs on certain imports from…

The United States will impose fifty percent tariffs on Canadian imports starting Saturday. This action follows failed trade negotiations between the two nations. Canada declined a…