Polls have been showing majority support since at least 2011, and recent polls have it nearly at 60% supported nationally. The largest effect is the dying off of older homophobes, as youth support is well north of 70%. Opposing gay marriage is a losing issue by any measure, and in another couple of decades we'll look back on these years with the same shame as we do when we discuss black and minority suffrage in the '60s.

http://en.wikipedia.org/wiki/Public_opinion_of_same-sex_marr...