A majority of Americans nationally support same-sex marriage, according to poll released Wednesday from Gallup. Fifty-three percent of Americans polled said they support gay marriage, while 46 percent oppose it. That ties the previous high from Gallup's mid-2011 poll on the issue. From their analysis:
The biggest differences by age in support for same-sex marriage occur at the extremes, with 34 percentage points separating 18- to 29-year-olds and those 65 and older. Support among Americans aged 30 to 64 is basically split, mirroring the national average.
Republicans are the most opposed to same-sex marriage, while Democrats are the most in favor. Independents tilt toward support -- close to the national average. This finding relates to the fact that party identification in the U.S. today is correlated with religiousness, with Republicans substantially more likely to be religious than independents or Democrats.