The bitter public feud between Donald Trump and Elon Musk continues to simmer as the White House ordered the Defense Department and NASA to review billions of dollars' worth of contracts awarded to the Tesla (TSLA) CEO's SpaceX business,

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

Musk is busy hyping the tentative launch on June 22 of Tesla’s long-awaited robotaxi pilot program in Austin, Texas.