Elon Musk phoned President Trump before publicly expressing regret for attacks that he said “went too far” during a public feud between the men last week, according to people familiar with the matter...

The writer’s grandfather founded an agricultural empire, but destroyed his business and his family rather than cede control to his sons.

A reduced role for SpaceX would represent the first known setback to Musk's huge volume of business with the U.S. government since his break with Trump last week.