Why did Moody’s downgrade US credit rating? How did Trump’s tariffs impact Walmart prices? What caused the recent S&P 500 rally? Why is Nvidia shifting AI chip strategy for China? How is Trump’s Middle East trip affecting markets? What are the implications of the federal worker strike? Why are big tech firms facing antitrust lawsuits now? How did the Coinbase hack affect crypto markets? What’s behind the surge in McDonald’s hiring?