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.

Tesla shares recouped some losses that had been triggered by a spat between CEO Elon Musk and U.S. President Donald Trump, even though a truce appeared uncertain on Friday as a White House official said the president was not keen on talking to his former ally.