Trump threatens Canada with 35pc tariff rate starting Aug 1

Canada will face a 35 per cent tariff on exports to the United States starting August 1, President Donald Trump said Thursday in a letter to Prime Minister Mark Carney.

It was the latest of more than 20 such letters issued by Trump since Monday, as he continues to pursue his trade war threats against dozens of economies.

Canada and the US have been locked in trade negotiations in hopes of reaching a deal by July 21, but the latest threat appeared to have shifted that deadline.