Yolanda Díaz, the minister of labor and social economy from the left-wing Sumar party, said: “Last night, the whole planet could see Elon Musk emulating the Nazi salute in the context of Donald Trump’s inauguration. It has been a very harsh image that has made me make a decision that I have been meditating on for several months.”

Experts say the EU can wield its digital services rules against election interference – but even that won’t be easy.

Billionaire Elon Musk gave a stiff arm salute during the Trump inauguration rally that has gone viral; The 'Nazi' salute explained.