The Berger Action Fund, one arm of liberal Swiss billionaire Hansjörg Wyss’ philanthropic empire, gave tens of millions to one of America’s most prolific Democrat-aligned dark money groups. The Berger Action Fund, a 501(c)(4) nonprofit organization, gave $35 million to the liberal dark money group Sixteen Thirty Fund in 2022, tax documents show. Sixteen Thirty Fund in 2022 poured tens of millions into Democrat-aligned PACs, groups supporting left-wing ballot measures and voter mobilization operations designed to increase turnout among Democrat-friendly demographics, according to tax forms. Wyss, a Swiss billionaire who made his fortune selling medical devices, had not disclosed publicly...