Elon Musk may be CEO of Tesla, but his broad vision and engineering intuition have made him a recognized leader across several industries, even if his sometimes callous opinions or the rigid expectations he sets for employees have made him a polarizing figure.

Sources said that Musk’s near-constant presence at Mar-a-Lago in the week since Election Day had begun to wear on people who’ve been in Trump’s inner circle

Elon Musk, the world’s richest person, will be taking on an official role to try to help President-elect Donald Trump make government more efficient. It will add yet another responsibility to an ever-growing to-do list for the increasingly distracted CEO and business leader.