President Donald Trump said he is keeping his red Model S Tesla despite his recent feud with Elon Musk, but it might not stay at the White House, where the electric car has been parked since he bought it.

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.