Carney names ex-Blackrock executive Mark Wiseman as new US ambassador

Beyond domestic politics, Wiseman will face the currently thorny relationship between the US and Canada while in Washington.

Trump halted trade talks with Canada in late October in anger over an anti-tariff advertisement commissioned by the province of Ontario and aired in the US.

Trump has imposed sector-specific tariffs on Canadian metals, lumber and automotives.

He has also imposed a sweeping tariff rate of 35% on all goods, though most have been exempt under the Canada-United States-Mexico Agreement (CUSMA) - known at the USMCA in the US - trade pact.

A scheduled review of CUSMA is now underway, starting with public hearings and stakeholder consultations, after which Canada, the US and Mexico could agree to renew it, or let it expire.