The Biden White House explained the snub by noting that the automakers that had been invited were the nation’s three largest employers of the United Auto Workers, a powerful union, and it suggested that the administration would find other ways to partner Tesla. (Union animus towards electric vehicles later became a problem for Mr Biden.)

This suggests that a reaction from consumers who dislike Mr Musk’s antics are only one reason for falling sales. An updated Model Y, Tesla’s best-selling vehicle, has just gone on sale. In preparation Tesla ran down inventory of the old model, crimping supply. Customers doubtless held off purchases until the new car was available.

Trump told reporters he would write a check for the car, which retails for roughly $80,000, and leave it at the White House so his staff can drive it. The president also said he hopes his purchase will boost Tesla,