The Church of Jesus Christ of Latter-day Saints contributed $1 million and the Catholic Diocese of Boise donated $300,000 to a political action committee opposing Idaho's Proposition 1, which would establish a constitutional right to abortion access, according to campaign finance disclosures reported by the Lewiston Tribune.

The donations make the religious organizations the largest contributors to the opposition campaign. The Church previously donated $1 million to a similar PAC opposing an abortion-rights measure in Idaho in a prior election cycle.

Proposition 1 appears on Idaho's November ballot and would amend the state constitution to guarantee abortion rights. The Church has historically taken public positions on abortion-related ballot measures in multiple states.