California Charities Must Disclose Major Donors, Court Rules

California may require charities that raise money in the state to disclose the names of major contributors, a federal appeals court decided Friday.

The decision stemmed from a lawsuit by the Center for Competitive Politics, a group that opposes campaign finance and reporting regulations. Another charitable group backed by conservative donors David and Charles Koch filed a similar suit in federal court in December.

The center contended the disclosure requirement violated its 1st Amendment rights to freedom of association and asked a district judge to prevent Atty. Gen. Kamala D. Harris from enforcing it. The judge refused...