Stock market today: Dow, S&P 500, Nasdaq sink as Nvidia plummets 7%, Trump tariffs stalk markets

US stocks retreated on Monday as shares of AI darling Nvidia (NVDA) tanked and a looming deadline fueled economic uncertainty around President Donald Trump’s tariff plans.

The S&P 500 (^GSPC) fell 0.7% while the tech-heavy Nasdaq Composite…