How did Tesla go from the world’s fastest-growing automaker to an organization beleaguered by slowing gross sales and shrinking market share? In line with a staff of Yale researchers, the reply lies within the polarizing and partisan conduct of CEO Elon Musk.
Positive, Tesla has confronted headwinds from growing old fashions, rising competitors, and a saturated buyer base. However an evaluation of county-level information exhibits that its declining demand can also be linked to Musk’s more and more political actions. The examine’s authors estimate that Tesla would have bought between 1 million to 1.26 million extra automobiles lately with out what they name the “Musk partisan impact.”
Throughout the latest quarter, Tesla’s revenue plunged 37 p.c year-over-year. Income fell for 2 consecutive quarters this 12 months. (The newest quarter noticed a rebound due to tax credits-fueled shopping for rush.)
The Yale researchers argue that a lot of Tesla’s decline stems from the alienation of its conventional client base. Drawing on car registration information from S&P World and county-level voting data, they discovered that Tesla’s buyer base has lengthy leaned Democratic and environmentally aware.
That started to vary in 2022, when Musk acquired X and rolled again content material moderation insurance policies. The shift deepened amid his involvement within the 2024 U.S. presidential election and his subsequent appointment as head of the Trump administration’s Division of Authorities Effectivity (DOGE). “Musk’s actions antagonized his most loyal buyer base,” the authors wrote.
The development has solely grown extra pronounced. Between October 2022 and April 2025, Musk’s partisan conduct prompted Tesla to lose between 67 p.c and 83 p.c of its potential automotive gross sales, in response to the examine. Within the first quarter of 2025 alone, that determine jumped to 150 p.c.
Musk himself has acknowledged the backlash. Throughout an April earnings name, he stated his DOGE function had led to “blowback” and introduced plans to cut back his time with the company to refocus on Tesla.
The fallout hasn’t even benefited Tesla’s opponents. The examine discovered that, absent Musk’s partisan conduct, gross sales of different EV and hybrid fashions would have been 17 to 22 p.c decrease over the previous three years and 25 p.c decrease in early 2025, suggesting his actions helped rival automakers.
Musk’s controversies have additionally had unintended coverage penalties, the researchers famous. In California, which goals for zero-emission automobiles to make up 25 p.c of recent gross sales by 2026, 68 p.c by 2030, and 100% by 2035, progress has stalled. The examine estimates that with out Musk’s partisan impression, California would have added 139,700 extra EV gross sales within the first quarter of 2025. The truth is that California fell brief by 28,000 automobiles in that quarter to remain on observe.
This examine highlights simply how impactful a CEO’s partisan actions will be,” the authors concluded.

