(FILES) Elon Musk looks on as US President Donald Trump speaks at the US-Saudi Investment Forum at the John F. Kennedy Center for the Performing Arts in Washington, DC on November 19, 2025. Elon Musk's lawsuit accusing high-profile artificial intelligence company OpenAI of betraying its non-profit mission heads for trial on April 27, 2026 with the selection of jurors. The legal clash in a courtroom across the bay from San Francisco pits the world's richest person against a startup Musk once backed and now competes with in the booming AI sector. (Photo by Brendan SMIALOWSKI / AFP via Getty Images)