With Tesla stocks plunging, owners rushing to sell their vehicles, and protests against Elon Musk's car company growing, it's been a bad time for Tesla and its Trump-supporting CEO. And on Tuesday, The Late Show host Stephen Colbert used his monologue to break it all down.

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.

Tesla’s stock has dropped by nearly half in three months. Even so, investors are still debating whether Elon Musk's electric-vehicle maker remains overpriced.