- Elon Musk was "pained" by the fallout with his eldest daughter, his biographer wrote in a new book.
- Musk told Walter Isaacson that his daughter "doesn't want to spend time with me."
- Musk's daughter legally changed her name in 2022 and said she didn't want to be associated with him.
Elon Musk's relationship with his daughter is a source of turmoil for the billionaire, his biographer says.