Musk has been able to play off Tesla's struggles for over a year now because the stock has been astonishingly resilient. Neither political gaffe nor falling deliveries has knocked Tesla off its upward trajectory, but Monday's selloff may be a sign of a changing sentiment.

Elon Musk announced the creation of the 'America Party' after fighting with President Donald Trump over government spending. Experts say it will be tough to achieve success

Building a viable new political party to rival the Democrats and Republicans is enormously difficult and expensive. Small wonder it hasn’t been done.