For the first time in years, American support for same-sex marriage has slipped. A new Gallup poll finds that 65% of U.S. adults now say same-sex marriages should be recognized as legally valid — down from a record high of 71% in 2022 and 2023, and roughly three points lower than just a year ago.
The figures come from Gallup’s annual Values and Beliefs survey, one of the longest-running measures of American attitudes on social issues. The same survey found that 32% of respondents now say same-sex marriages should not be legally valid, the highest level of opposition recorded in several years.
A Reversal After Decades of Steady Gains
The shift is notable because it breaks a long, near-continuous climb. When Gallup first asked the question in 1996, just 27% of Americans favored legal recognition of same-sex marriage. Support rose steadily over the following decades, crossing the majority threshold in 2011 and peaking above 70% in the early 2020s.
That trajectory made same-sex marriage one of the fastest-moving shifts in modern American public opinion. The latest readings mark the first sustained pullback pollsters have measured since the issue reached majority approval — and the question now is whether it is a temporary dip or the beginning of a longer realignment.
The Decline Is Not Evenly Spread
Gallup’s data show the movement is concentrated rather than uniform. The largest change appeared among Republicans, whose support has fallen well below where it stood a few years ago. Support among Democrats has held essentially steady, while independents have edged down only slightly.
That pattern means the overall national decline is being driven mostly by one part of the electorate, even as a clear majority of Americans overall continue to back legal recognition. Analysts caution against reading too much into a single year of data, noting that survey numbers can fluctuate year to year before settling into a clearer trend.
The same Gallup release also recorded softening support for several other LGBTQ-related questions, suggesting the same-sex marriage figure may be part of a broader, if modest, cooling in attitudes rather than an isolated result.
What the Numbers Mean
Same-sex marriage has been legal nationwide since the U.S. Supreme Court’s 2015 Obergefell v. Hodges decision, and the new polling does not change the law. But public-opinion measures like Gallup’s are closely watched because they can shape the political environment around an issue — informing how lawmakers, courts, advocacy groups and voters talk about it.
A 65% majority still represents broad public acceptance by historical standards. At the same time, a measurable decline after years of gains is the kind of data point that tends to spark debate across the political spectrum about what is driving the change — whether it reflects shifting generational views, the broader political climate, or simply normal movement in survey responses.
What This Means for Americans
For most people, the practical reality is unchanged: same-sex marriage remains legal across the country. What the poll captures is the national mood — a snapshot of how Americans are thinking about a question that, for years, had seen only one direction of movement. Whether this marks a genuine turning point or a one-year blip is something future surveys will answer.
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