Multiple states bordering Canada could feel the greatest impact of a 35 percent tariff on Canadian products starting August 1.

US stocks fell on Friday after President Donald Trump threatened a 35% tariff on Canada — a sharp escalation in an ongoing trade war.

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.

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.

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.

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.

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,

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.

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.

The twists and turns in U.S. President Donald Trump's tariff policies have not only rattled global financial markets but have also taken investors on a roller-coaster ride. Adding to the uncertainty are tariff-related legal challenges and Trump's assertion that he would hammer out bilateral deals with trade partners.