Group 1: Market Reaction - The markets are experiencing a downturn due to President Trump's global tariff rollout plan, with major indices like the Dow Jones Industrial Average, S&P 500, Nasdaq Composite, and Russell 2000 hitting 52-week lows [1] Group 2: U.S. Steel Acquisition - Shares of U.S. Steel have surged by 14.5% following President Trump's directive for a review of the potential acquisition by Japan's Nippon Steel, with the offer priced at 55pershare,representinga4414.9 billion bid [4][5]