Sales of Tesla cars have nosedived across some of the EV manufacturer’s most valuable European markets—and experts are blaming Elon Musk. Sales in Germany, where Tesla has a factory, dropped a staggering 59 percent in January compared to the same month last year,

Though Tesla’s shares have doubled over the past 12 months, they’ve had a tough run since the inauguration. Investors are waiting to see if Musk can keep the company’s charmed run going.

The U.S. electric car company’s sales are sliding across Europe, amid what many see as interference in local affairs by Tesla’s chief executive, Elon Musk.