Steven Mnuchin was part of a Trump administration effort to crack down on the social media app. Now he wants to buy it.

“I think the legislation should pass — I think it should be sold,” Mnuchin told CNBC. “I understand the technology, it’s a great business, and I’m going to put together a group to buy TikTok.

The bill’s proponents say they want to wrest TikTok from foreign control, expressing concerns that the Chinese government could use the app to spy on Americans or influence elections. TikTok, which says its U.S. operations use cloud servers in the United States, has criticized the bill and lobbied against it, saying the real objective is to ban the app outright.

Mnuchin was part of a 2020 effort to force a TikTok sale or banwhen he led the Treasury Department under PresidentDonald Trump. Mnuchin said a Treasury panel that oversees foreign investments recommended a sale, although Trump ultimately signed an executive order barring U.S. entities from doing business with TikTok and another Chinese-owned app, WeChat, which would have effectively banned them from app stores on phones in the United States. Federal courts blocked the order, however.

Since leaving government, Mnuchin has founded Liberty Strategic Capital, a D.C.-based private equity firm focused on technology companies. Mnuchin declined to say Thursdaywho might be part of his investment group, but he stressed that no single investor would have a controlling interest.

Several other investors have expressed interest in buying TikTok, although it’s unclear how advanced those efforts are. Canadian investor Kevin O’Leary, a regular on the “Shark Tank” TV show, has said he wants to buy the app. He has called it a “complicated transaction,” however, because Congress has not clarified whether it would have to be a full or partial divestment.

Former Activision chief executive Bobby Kotick has also floated the idea to potential investment partners, according to the Wall Street Journal.