Why did Trump threaten tariffs on Apple and the EU? How will US Steel-Nippon deal affect American jobs? What caused the mass outage on Elon Musk's X platform? Why is Nvidia planning a low-cost AI chip for China? How will Trump's tax bill impact clean energy sector? Why is Harvard suing the Trump administration? How are AI tools reshaping business workflows and jobs? What led to McDonald's closing its CosMc's locations? How did Trump's trade war threats impact stock markets?