FiveThirtyEight (The New York Times)
May 10, 2012
President Obama’s decision to endorse marriage equality undoubtedly entails some political risk, but recent polls suggest that public opinion is increasingly on his side. According to surveys included in the database, an average of 50 percent of American adults support same-sex marriage rights while 45 percent oppose it, based on an average of nine surveys conducted in the past year. This is a reversal from earlier periods: support for marriage for same-sex couples has been increasing, and opposition to it has been decreasing, at a relatively steady rate of perhaps two or three percentage points a year since 2004.