The non-religious are now the country’s largest religious voting bloc

More American voters than ever say they are not religious, making the religiously unaffiliated the nation's biggest voting bloc by faith for the first time in a presidential election year. This marks a dramatic shift from just eight years ago, when the non-religious were roundly outnumbered by Catholics, white mainline Protestants and white evangelical Protestants.

These numbers come from a new Pew Research Center survey, which finds that "religious 'nones,' who have been growing rapidly as a share of the U.S. population, now constitute one-fifth of all registered voters and more than a quarter of Democratic and Democratic-leaning registered voters." That represents a 50 percent increase in the proportion of non-religious voters compared with eight years ago, when they made up just 14 percent of the overall electorate....
https://www.washingtonpost.com/news/wonk/wp/2016/07/14/the-non-religious-are-now-the-countrys-largest-religious-voting-bloc/?postshare=1201468521743395&tid=ss_fb