Below are some quotes from the lead article:
...the percentage of self-identified Christians has fallen 10 percentage points since 1990, from 86 to 76 percent.
While we remain a nation decisively shaped by religious faith, our politics and our culture are, in the main, less influenced by movements and arguments of an explicitly Christian character than they were even five years ago. I think this is a good thing—good for our political culture, which, as the American Founders saw, is complex and charged enough without attempting to compel or coerce religious belief or observance. It is good for Christianity, too, in that many Christians are rediscovering the virtues of a separation of church and state that protects what Roger Williams, who founded Rhode Island as a haven for religious dissenters, called "the garden of the church" from "the wilderness of the world."
Still, in the new NEWSWEEK Poll, fewer people now think of the United States as a "Christian nation" than did so when George W. Bush was president (62 percent in 2009 versus 69 percent in 2008). Two thirds of the public (68 percent) now say religion is "losing influence" in American society, while just 19 percent say religion's influence is on the rise. The proportion of Americans who think religion "can answer all or most of today's problems" is now at a historic low of 48 percent. During the Bush 43 and Clinton years, that figure never dropped below 58 percent.Here's the Link