Deliveries of Elon Musk's Tesla vehicles dropped about 13% compared to a year ago, according to a new release from the company. The decline comes amid criticism of Musk and increased competition.

Musk's presence on the political scene has greatly—and negatively—impacted Tesla. Since Tesla stock hit an end-of-day record of $464 billion on December 17, closing at an all-time high of $480 per share, Musk's fortune has decreased by $121 billion.