Why did Moody's downgrade US credit rating? How will Walmart’s price hikes affect consumers? What triggered Nvidia’s AI chip shipment to China? Why is the NJ Transit rail strike ongoing? How did Trump’s Middle East tour impact markets? What caused the drop in US consumer sentiment? Why is Apple clashing with Epic Games over Fortnite? How are tariffs affecting retail and supply chains? What’s behind Starbucks baristas’ dress code walkouts?