Elon Musk’s bitter falling-out with President Trump could be costly for Tesla. As long as he is persona non grata in the Trump administration, Mr. Musk, the chief executive of Tesla, will struggle to persuade Republicans not to gut climate policies worth billions of dollars to the electric car and battery company.

The elder Musk told Moscow's Tsargrad TV, according to a report by The Sun, that his son made a mistake when he put his resources into getting Trump elected.