Venture capitalist David Sachs is joining the Trump administration and will be the “White House AI and crypto Czar” and lead the President’s Council of Advisors on Science and Technology.

A venture capitalist who was a vocal supporter of Donald Trump during the campaign — and a critic of U.S. support for Ukraine — will be joining the new administration.

David Sacks will be the “White House A.I. & Crypto Czar” and lead the Presidential Council of Advisors for Science and Technology, the president-elect announced Thursday in a social media post.

Sacks “will focus on making America the clear global leader” in artificial intelligence and cryptocurrency, Trump wrote on Truth Social, calling the emerging fields “two areas critical to the future of American competitiveness.”

As part of the role, Trump said, Sacks will work to “safeguard Free Speech online” and “work on a legal framework so the Crypto industry has the clarity it has been asking for.”

Sacks leads a venture capital firm, hosts a podcast and formerly served as COO of Paypal. He hosted a ritzy San Francisco fundraiser for Trump in June and was part of a cadre of Silicon Valley tech entrepreneurs who threw their support behind the president-elect during the campaign.

He is friends with Elon Musk and has frequently criticized U.S. efforts to help Ukraine counter the Russian invasion.