A network of ultrawealthy Christian donors is spending nearly $12 million to mobilize Republican-leaning voters and purge more than a million people from the rolls in key swing states, aiming to tilt the 2024 election in favor of former President Donald Trump.

These previously unreported plans are the work of a group named Ziklag, a little-known charity whose donors have included some of the wealthiest conservative Christian families in the nation, including the billionaire Uihlein family, who made a fortune in office supplies, the Greens, who run Hobby Lobby, and the Wallers, who own the Jockey apparel corporation. Recipients of Ziklag’s largesse include Alliance Defending Freedom, which is the Christian legal group that led the overturning of Roe v. Wade, plus the national pro-Trump group Turning Point USA and a constellation of right-of-center advocacy groups.