The stock market suffered damaging weekly losses amid Trump tariff news, despite Fed chief Powell offering support Friday.

Everything to Know about Macro and Markets Stocks rallied on Friday but still closed with steep weekly losses. The Dow Jones ...

Tariffs are making investors anxious for a few reasons. First, they can increase costs for companies that rely on importing foreign goods, and that can impact profits and, in turn, share prices.

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