Stock Market Today: Nasdaq Correction Confirmed as AI Crackdown Selloff Erases $3 Trillion

The week compressed an entire policy-regime debate into five trading sessions, and Thursday was the tap that decided it. A Democratic congressional sweep, confirmed Tuesday's vote and absorbed Wednesday as pure relief, was repriced in a single session as an AI-regulation shock: the Nasdaq tumbled 5.52% on November 5, its deepest one-day drop in 19 months, confirming a technical correction, while the S&P 500 fell 4.36% to 7,353.73 and roughly $3 trillion of market value vanished from the index. The question going into Friday's October payrolls report and next Tuesday's October CPI is whether Thursday was an air pocket in an otherwise healthy AI buildout or the first real crack in the regime t…