Elon Musk and Tim Cook, far right, were among the U.S. chief executives in attendance during a state banquet in Beijing last week.

A SpaceX rocket in 2024. The company, led by Elon Musk, chose Goldman Sachs to be the lead bank for its initial public offering.

OpenAI’s president, Greg Brockman, right, was also named in Mr. Musk’s lawsuit.

The federal courthouse in Oakland, Calif., on Monday, when a jury decided that Elon Musk had waited too long to file his lawsuit against OpenAI.

In the trial’s first day of testimony in the OpenAI trial, Elon Musk said greed led Sam Altman, a founder of OpenAI, to pull the A.I. lab away from its nonprofit roots. OpenAI disagrees.

Elon Musk arriving at the Ronald V. Dellums U.S. Courthouse in Oakland Tuesday.

Errol Musk, who has at least nine children and stepchildren, at his home in South Africa in 2022.

Elon Musk boarding Air Force One in March.

President Trump showed support for Elon Musk during the news conference.

Friday was Elon Musk’s last day as a “special government employee.”

Bill Gates said that Elon Musk had gutted the U.S. Agency for International Development, resulting in the deaths of children in some of the world’s poorest countries.

Bill Gates and George Osborne, Britain’s chancellor of the Exchequer, at an event in Liverpool in 2016 announcing funding for a program aimed at reducing deaths from malaria.

The latest recall of the Tesla Cybertruck includes all models manufactured from Nov. 13, 2023, to Feb. 27.

Demonstrators outside a Tesla dealership in Palo Alto, Calif., on Saturday.

President Trump and President Volodymyr Zelensky of Ukraine during their contentious meeting at the White House last month.