Trade negotiations broke down late Friday night, triggering 50% tariffs on roughly $20 billion worth of Canadian goods.

OTTAWA - U.S. President Donald Trump's latest tariff threat on $28 billion worth of Canadian goods is set to take effect just after midnight, unless officials are able to finalize

The United States and Canada were back at the negotiating table Friday, with the clock ticking down to a midnight deadline when punishing new US tariffs kick in.