Tesla's electric-vehicle registrations in California fell about 12% last year, according to industry data, indicating mounting challenges for the automaker in the key U.S. market.

For years, Tesla has been the undisputed heavyweight of California’s growing electric vehicle market. It’s dominated sales charts, crushed the competition, and made itself syn

Californians are registering thousands of new Cybertrucks even as there are fewer takers of the bestselling EVs in its lineup.

Investors are looking for evidence Musk’s politics are hurting Tesla. It’s hard to find, but California might be turning against Musk—slowly.

For years, Tesla has been a leader in the electric vehicle market. The company’s products have pushed envelopes, raised the bar, and generated unprecedented buzz – along with booming sales. However, the days of Tesla’s total dominance in the EV world may be drawing to a close.