As the GOP moves further right, America goes to the left, as illustrated in this chart based on a Pew Research Center poll.
Five years ago, if there were five Supreme Court justices who believed that marriage equality should be the law of the land, they’d still probably have shied away from saying so for fear of issuing a desperately unpopular decision on a hot-button subject. Today, not so much. And with the Obama administration now saying that DOMA should be subjected to “heightened scrutiny” it would seem to follow that all forms of marriage inequity also deserve said heightened scrutiny. Consequently, I think we may actually wind up having nationwide marriage equality sooner than people think as long as Justice Kennedy continues to be sympathetic to gay equity claims.