President Donald Trump said the U.S. will increase its tariff rate on Canadian goods to 35% starting next month.In a letter to Canada’s Prime Minister Mark Carney posted on Trump’s Truth Social account late Thursday,

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.

President Trump’s ever-swerving tariff regime has taken more sharp turns in recent days.On July 7, his administration pushed back some of its most punishing duties by three more weeks to August, following a 90-day delay.

Trump threatened to escalate tariffs beyond 35% if Canada opts to retaliate with tariffs on U.S. goods. Canadian goods are also subject to sector-specific tariffs, such as 50% levies on steel and aluminum as well as 25% tariffs on non-USMCA compliant autos and auto parts.

Trump this spring imposed a 25% tariff on cars and car parts, including those from Canada. But certain cars and parts qualify for preferential treatment under the USMCA, meaning the 25% tariff applies only to the non-U.S. content of the automobile or part.

The U.S. Treasury Department on Friday will reveal the strength of President Donald Trump's tariff revenues in its June budget data, as collections from multiple waves of new import duties start to build into a substantial government revenue source.

Many economists already believe it’s a matter of time before Americans start to see sticker shock from the tariffs President Donald Trump has enacted. That timeline could speed up even more if Trump follows through with his latest package of tariff threats slated to take effect in three weeks.

Trump Always Chickens Out—JPMorgan CEO Jamie Dimon cautioned that investors may be underestimating the risks of relying on past tariff U-turns. UBS’s Paul Donovan reinforced this concern in a note seen by Fortune,

Freeport-McMoRan could see a $1.6-billion boost to annual profit if President Donald Trump's copper tariff materializes, a benefit driven by the firm's role as the largest U.S. producer with more expansion options than rivals.