Kimbal Musk says his brother Elon is doing 'great'

Kimbal Musk, who sits on the boards of Tesla and SpaceX, said that his brother Elon is doing great and that his brother is working hard to do everything for Tesla's shareholders. The Tesla CEO has faced a lot of scrutiny for his recent behavior, including smoking marijuana on camera.
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Mon, Sep 17 20183:28 PM EDT