Why is Nike selling on Amazon again? How are tariffs impacting U.S. retailers? What caused the recent Dow stock plunge? Why did AT&T buy Lumen's fiber business? How will OpenAI's deal with Jony Ive affect Apple? Why are Target's sales and forecast slumping? What’s driving Bitcoin’s all-time high surge? Why is Newark Airport limiting flights this summer? How will GOP’s tax bill affect Medicare?