As the share price plunges, investors wonder whether the company, led by Elon Musk, can withstand intensifying competition.
Worries are growing in Washington that a flood of Chinese products could put new American investments in clean energy and high-tech factories at risk.
Buying an electric car has become much more complicated because of restrictions on which models qualify for a federal tax credit of up to $7,500.
Trump huffed and puffed; Biden is rewriting the rules.