Sales of new Tesla cars almost halved in Europe last month, indicating waning demand for the US carmaker’s vehicles as its chief executive Elon Musk intervened repeatedly in the politics on both sides of the Atlantic.

The Texas-based carmaker sold 9,945 vehicles in Europe in January, down 45% from last year’s 18,161, according to data from the European Automobile Manufacturers’ Association (ACEA). Tesla’s share of the market dropped to 1% from 1.8%.