Gay marriage at a cultural, political tipping point

When historians write the story of America’s cultural revolution on gay marriage, March of 2013 may well get its own chapter — the month when the political balance on this issue shifted unmistakably from risky to safe. But historians will surely also note that this was a movement in which the politicians, for the most part, were mere passengers along for the ride. With very few exceptions, elected officials remain profiles in caution and calculation, while activists and courts are the real engines of change.

This from Politico this morning, leaving me to wonder what this means for the U.S. political scene -- and for the Catholic church?