A shadowy organization that Republicans have long accused of laundering foreign money into the American electoral system poured tens of millions of dollars into liberal groups during the 2024 election, new tax filings show.

The Berger Action Fund, a public advocacy group founded by Swiss billionaire Hansjorg Wyss, transferred $34.4 million to the Sixteen Thirty Fund between April 2023 and March 2024, alongside tens of millions more to other left-wing activists, nonprofit disclosures first shared with Politico show. Conservative activists have accused Wyss of using the Sixteen Thirty Fund, a major leftwing dark money group, as a vehicle to influence American policy with his foreign wealth through a loophole in campaign finance law.