Microsoft president and Nvidia chief scientist testify in Senate AI hearings

Senator Richard Blumenthal urges risk-based approach to regulation as panel hears from companies at forefront of AI boom

Microsoft and the chipmaker Nvidia are the latest companies to take the hot seat in a series of Senate judiciary hearings on artificial intelligence as the federal government continues to grapple with how to regulate the technology.

Microsoft's president, Brad Smith, and Nvidia's chief scientist, William Dally, are testifying on Tuesday alongside Woodrow Hartzog, a professor of law at Boston University School of Law.