President Trump has declared multiple national emergencies since taking office. That's helping him act quickly. There are few checks and balances on the emergency powers he's claiming.

Yahoo Finance will chronicle the latest news and updates on Trump's tariffs — from the threats to the eventual policy.

Trump is amping up tariffs against almost every other country. The Mississippi economy relies on trade with Canada, Mexico, China. What will happen?

The U.S. president sees international trade as a zero-sum game. The truth is more complicated, according to economists ...

tia.yang ( Tia Yang, senior editor): Americans overall are fairly split over tariffs. Broadly speaking, polls this year have ...