Tesla’s financial tale, however, has taken a turn since Trump took the oath of office with Tesla stock down over 17% since Jan. 21, as of midday Friday. Just weeks before the inauguration, Tesla reported the first full-year drop in global sales in its history as a public company, according to a report from CNN.

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.