Tesla Inc.’s sales plummeted 59% last month in Germany, adding to indications that Chief Executive Officer’s Elon Musk political activities are hurting the carmaker’s business in major electric vehicle markets.

While Elon Musk has been generating headline after headline for his efforts to reshape the US federal workforce, the stock of his electric-car company just suffered its worst weekly performance since October.

Tesla’s (TSLA) sales in Germany plummeted 59% in January after only 1,277 new cars were registered, the lowest monthly total since July 2021.