Elon Musk took the stand for the second day Wednesday in the landmark trial that pits the world’s richest person against Sam Altman, a fellow OpenAI co-founder he accuses of betraying promises to keep...

The court battle between the titans of artificial intelligence, Elon Musk and Sam Altman, always threatened to create a circus atmosphere, and after day one, it didn’t disappoint.

It started Monday and is expected to last about three weeks.