Crack Down on Dark Money Act

This bill limits political spending by 501(c)(4) social welfare organizations to 10% of their total budget and requires them to disclose donors contributing $5,000 or more when they engage in election-related activities. It defines "political intervention" broadly to include direct advocacy for candidates, communications about candidates, and transferring resources to support campaigns. Exceptions cover voter education, responses to candidate attacks, and limited personal remarks at meetings. The rules apply to contributions made in 2024 and later, aiming to increase transparency around election-related spending by these groups.