For the first time in 15 years of Pew Research Center polling, fewer than half oppose same-sex marriage, though, support (42%) remains below opposition (48%). The shift in favor of gay marriage has been broad-based, occurring across many demographic, political and religious groups.
Many Americans continue to say their religious beliefs have been highly influential in shaping their views about social issues, including abortion and same-sex marriage. But far fewer cite religion as a top influence on their opinions about several other social and political issues, including how the government should deal with immigration, the environment and poverty. […]