(NPR) — The big demographic story out of the 2012 presidential election may have been President Obama’s domination of the Hispanic vote, and rightfully so.

But as we close the book on the election, it bears noting that another less obvious bloc of key swing state voters helped the president win a second term.

They’re the “nones” — that’s the Pew Research Center’s shorthand for the growing number of American voters who don’t have a specific religious affiliation. Some are agnostic, some atheist, but more than half define themselves as either “religious” or “spiritual but not religious,” Pew found in a recent survey.

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