Canada's PM faces pressure after losing a minister in row over how to respond to possible future tariffs from the US.

Chrystia Freeland says Canada faces a "grave challenge" from incoming US President Donald Trump's tariff threats.

The proposed tariffs, if applied to oil and gas, could hammer Canada's economy and hike prices at the pump for Americans, analysts say.

Jamieson Greer could help oversee import taxes planned by the US president-elect on the US's top trading partners.

The US president-elect's import taxes may be just talk until he takes office - but they are having an impact anyway.

The US president-elect is using tariffs as a weapon of diplomacy, even coercion, says BBC economics editor Faisal Islam.

Trump claims more taxes on trade wouldn't be a cost to the US - but almost all economists dispute this.

The president-elect calls it an effort to force them to crack down on illegal immigration and drug smuggling into the US.