President Donald Trump threatened a 35% tariff on some Canadian goods and raised the prospect of increasing levies on most other countries, ramping up his trade rhetoric in comments that weighed on stocks and boosted the US dollar.

The country’s new prime minister, Mark Carney, has been called the “Trump whisperer,” and negotiations have been cordial and professional. But it’s been a wild ride.

Trump said on July 10 that he will impose a 35 percent tariff on Canadian goods starting Aug 1. Canadian Prime Minister Mark Carney later said on social media that trade talks with the US now have a revised deadline of Aug 1.