"Republicans, who have consistently been the party group least in favor of same-sex marriage, show majority support in 2021 for the first time (55%). The latest increase in support among all Americans is driven largely by changes in Republicans' views. Democrats have consistently been among the biggest supporters of legal same-sex marriage. The current 83% among Democrats is on par with the level of support Gallup has recorded over the past few years. This could suggest that support for gay marriage has reached a ceiling for this group, at least for now. Meanwhile, support among political independents, now at 73%, is slightly higher than the 68% to 71% range recorded from 2017 to 2020."
January 1, 1970
https://en.wikiquote.org/wiki/Same-sex_marriage