It has become increasingly difficult for people on the left to proudly own a Tesla. According to polling released by the left-leaning research firm Data for Progress last week, 59 percent of Democrats report that Elon Musk has made them much less likely to buy a Tesla. That’s compared to only 15 percent of Republicans.

Americans across the country are deeply split over Mr. Musk, with some welcoming his cuts to government and others outraged at what they see as an abuse of power.

Elon Musk's political activities and reduced presence at Tesla are stirring dissatisfaction, even within the company, with no plan to reverse falling sales.