Attitudes toward same-sex marriage and transgender issues are shifting, Gallup poll shows

Jessica Cramblett, 27, from Dahlonega, Georgia, holds a "Born This Way" flag as she watches the city's annual Atlanta Pride parade on Sunday, Oct. 13, 2019, in Atlanta. (AP Photo/ Robin Rayne)

Acceptance of same-sex marriage and relationships in the U.S. has flattened after more than two decades of steadily increasing support, with an ongoing decline among Republicans, according to a new Gallup poll.

About 65% of U.S. adults believe same-sex marriage should be legal, down slightly from 71% in 2022 and 2023.

Most of the change is due to dropping acceptance among Republicans. In the new survey, which was conducted in May, only 37% of Republicans say same-sex marriage should be legally valid, while 35% say gay and lesbian relations are “morally acceptable.”