Though Tesla’s shares have doubled over the past 12 months, they’ve had a tough run since the inauguration. Investors are waiting to see if Musk can keep the company’s charmed run going.

Sales of Tesla cars have nosedived across some of the EV manufacturer’s most valuable European markets—and experts are blaming Elon Musk. Sales in Germany, where Tesla has a factory, dropped a staggering 59 percent in January compared to the same month last year,

Musk, who also runs SpaceX and a number of other companies, has been known to make big often exaggerated promises. For example, he once called the Hyperloop, which was never built, the "fifth mode of transport" and famously promised to take Tesla private in a Twitter post, saying he had secured financing that he didn't have.