After the toys had all been thrown out of their respective prams, the temper tantrums of Elon Musk and Donald Trump have calmed, for now.

While the US President will continue his attempt to push his spending bill through Congress which experts say will increase the federal deficit by $3.8trn (£2.8trn) by 2034, Musk has other things on his mind – repairing his reputation and, to some extent, his business empire.

Top of his to-do list is to appease the shareholders of Tesla, his electric car business that saw its shares suffer a record-breaking single-day collapse as his war of words with the Oval Office played out before an open-mouthed global audience on Thursday night.

Shares in the Nasdaq-listed stock plunged 14 per cent as the world’s wealthiest man, and the most powerful, trad

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