US stocks fell across the board on on Tuesday, as President Donald Trump's revived tariff threats and potential toughening of China curbs weighed on market optimism and the chances of interest-rate cuts. Consumer confidence also plummeted in February, notching its biggest monthly decline in more than four years as 12-month inflation expectations jumped and recession fears escalated. The tech-heavy Nasdaq Composite (^IXIC) fell around 1.6% on the heels of a tech-led selloff on Monday. The benchmark S&P 500 (^GSPC) dropped roughly 0.7%, while the Dow Jones Industrial Average (^DJI) fell about 0.1%. The biggest move in markets early Tuesday, however,...