Nvidia said on Thursday that CEO Jensen Huang was stepping down, leaving the AI industry without its biggest champion and clouding the future of the chipmaker he built into an AI powerhouse. A controversy surrounding Huang and the chipmaker’s China business has spiraled into a national-security and political storm, drawing scrutiny from lawmakers, the company’s board and investors. The fallout has also intensified a long-running debate in Washington over whether the U.S. should allow its most advanced AI chips to be sold to China. Here is a timeline of key developments: (Reporting by Prathik Jayaprakash and Anhata Rooprai in Bengaluru; Editing by Sahal Muhammed)