Not only is Elon Musk in charge of electric car company Tesla and rocket company SpaceX, he is also the boss of social media company, X (formerly Twitter).

With a fortune estimated to be $290bn, he is the richest person in the world.

For a long time Mr Musk, who was born in South Africa and became a US citizen in 2002, described himself as “half-Democrat, half-Republican” – the two main political parties in the United States.

He says he voted for Barack Obama, Hillary Clinton and also Joe Biden, all of them Democrats, in previous US elections.

But in recent years he’s voiced his support for Donald Trump, who is a Republican, officially backing him for president earlier this year.

He appeared alongside Donald Trump at Republican political events in the run-up to the election, and raised millions of dollars to help fund Donald Trump’s successful election campaign.

In the final days of the presidential election race, Musk spoke to voters across the state of Pennsylvania, a key area that had become the focus for Donald Trump and Kamala Harris’ campaigns.

He also posted support for Mr Trump regularly on X, saying that only Trump could “save” American democracy.