More than six in 10 Americans who say they are lesbian, gay, bisexual or transgender identify as a Democrat or Democrat-leaning independent, while only 21 percent associate themselves with the Republican Party, according to Gallup.
The pollsters say non-LGBT Americans lean slightly Democratic, at 44 percent to 42 percent, with 13 percent saying they are independents who do not lean toward either party.
The gay and transgender population's political affiliation is virtually unchanged since 2012, when 21 percent identified as Republican and 65 percent aligned themselves with Democrats, according to Gallup.
Those alliances translate to approval of President Obama's job performance, with LGBT adults approving of the president's job 61-33 percent. Although a net positive, his approval is down 7 points from 2012 among this population.
Meanwhile, non-LGBT adults disapprove of Mr. Obama's job, 42-53 percent.
Gallup concluded that LGBT individuals make up a small percentage of the population and will not be a major voting bloc in elections, although they could sway close contests. Overall, data shows LGBT Americans are slightly less likely to be registered to vote or say they plan to vote than non-LGBT adults, the pollsters say.
"Still, it is clear that any political effect that LGBT voters do have will benefit the Democratic Party and Democratic candidates more than the Republicans," Gallup said.
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