U.S. stock markets have experienced significant declines, with the Dow Jones falling over 800 points and the dollar hitting new lows as investor concerns mount over the enduring trade war and tariffs imposed by the Trump administration. The S&P 500 and Nasdaq also saw sharp drops as Wall Street reacts to the uncertainty surrounding trade deals and Federal Reserve policies. Market futures indicated further losses as major tech stocks like Nvidia faced declines, exacerbating fears about export restrictions. With earnings reports expected, investors remain skittish as they navigate through a landscape clouded by political tensions and economic challenges.