US stocks closed mixed on Tuesday as President Donald Trump's revived tariff threats and potential toughening of China curbs weighed on market optimism while new data signaled fears over future economic growth. Consumer confidence plummeted in February, notching its biggest monthly decline in nearly four years as 12-month inflation expectations jumped and recession fears escalated. The tech-heavy Nasdaq Composite (^IXIC) finished the volatile trading day down around 1.3%, dragged down by shares of Magnificent Seven players like Nvidia (NVDA) and Tesla (TSLA). The benchmark S&P 500 (^GSPC) dropped roughly 0.4%, while the Dow Jones Industrial Average (^DJI) reversed earlier session...