American members of The Church of Jesus Christ of Latter-day Saints stood out over the past 20 years as the only religious group besides atheists that shifted toward greater Democratic Party self-identification.
Latter-day Saints remain the second most Republican-leaning religious group in the United States but a new Cooperative Election Study analysis found this GOP advantage has shrunk by around 10 percentage points.
Latter-day Saint partisan composition has changed from 68.5% GOP affiliation from 2007-2010, to 57.5% from 2022-2025, with the loss evenly split between increases in Democratic affiliation and no affiliation.
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