I've been leafing through the August 2005 issue of Harper's this week, and there is a great article by Bill McKibben titled, "How a Christian Nation Gets Jesus Wrong."
Whatever your political flavor, you'll find this interesting. Especially the comments about mainline denominations being entrenched in the issues of the day and forgetting mission. You can read a fragment of the story here. But I think you'll have to buy the magazine to read the entire story (or visit a library.)