U.S. stocks slumped as worries flared again on Wall Street about tariffs and inflation. The S&P 500 fell 0.9% Friday and wiped out what had been a modest gain for the week. The Dow Jones Industrial Average sank 1%,

However, the stock market shifted into a higher gear in November after Donald Trump emerged as the victor on election night. While it's crystal clear that Wall Street loves President Trump, an inherited risk threatens to send the Dow Jones, S&P 500, and Nasdaq Composite tumbling.

A fresh look at the pace of inflation will test the U.S. stock market in the coming week, as investors worry that President Donald Trump's tariff plans are endangering Wall Street's hopes for interest rate cuts this year.