For those debating the religious left right now, I highly recommend David Campbell and Robert Putnam’s book, “American Grace,” which is filled with very informative, nearly-comprehensive history, charts, and analysis of all aspects of American religion today.
Some surprising charts in there. For example: Progressives get more political in sermons, whereas the religious right moves their ideas through talk in the pews: 
Here's one on how much your faith affects politics — and how conservative that politics is:
This is one that makes the point from the tweet a few up — that the Religious Right moves through social networks *around* church, while religious left is *in* church.
Here's some on how religiosity is associated with civic engagement:
There's also fun charts, like this one on how different religions feel about themselves:
Also, just general orientation stuff about what's happening in religion right now, like this chart on how evangelicals are declining and secular "nones" are increasing:
And they get into splitting out different political beliefs by religion, which help complicate the "all religious people believe X thing" stories:
Enough graphs for now — check out the book!: amazon.com/American-Grace…
