US hits Canada with tariffs Ottawa vows dollarfordollar retaliation Trade negotiations between the US and Canada collapsed late Friday night, triggering fresh tariffs. Key points and original sources are listed below.

• US hits Canada with tariffs Ottawa vows dollarfordollar retaliationS1

• Trade negotiations between the US and Canada collapsed late Friday night, triggering fresh tariffs. At 12:01 a.m. ET, the US imposed a 50% tariff on nearly $28 billion worth of Canadian imports.S2