President Trump on Thursday threatened to impose a 35% tariff on Canadian goods beginning Aug. 1. Mr. Trump's latest salvo came after he also threatened tariffs on a number of other countries earlier in the week,

Trump’s threat to slap a 200% tariff on pharmaceutical imports, made offhandedly at a cabinet meeting, has sparked a selloff in some drug stocks, but analysts say the number may be more political posturing than economic policy.

The president’s supporters portray him as a top dealmaker. But, at least for now, far more trading partners have gotten stiff tariffs than trade deals.

President Trump escalated his push to remake global trade using a letter-writing campaign - and Wednesday he focused on minor U.S. trade partners like Brunei and Moldova. Trump also threatened a massive 50% tariff on Brazil,

US President Donald Trump’s plans to place hefty import tariffs on copper have already caused a spike in costs for American factories, with New York futures trading 25% higher than other global benchmarks on Tuesday.