Billionaire Elon Musk has donated to a super political action committee working to elect Donald Trump to the White House, a major gambit by the world’s richest person to make his imprint on the U.S. political landscape.

Musk has contributed to a low-profile group called America PAC, according to people familiar with the matter, who requested anonymity to detail his plans. It’s unclear how much Musk has given, but the people characterized the figure as a sizable amount. The PAC is next required to disclose its list of donors on July 15.

The move highlights the growing influence of a technology mogul who tops the Bloomberg Billionaires Index with a net worth of $263.6 billion and his shift from a self-described political independent — who said he preferred to stay out of politics — into a figure who regularly uses his X social media platform to espouse right-leaning views and assail Democrats.