Perhaps it is the postmodernist drivel that Barack Obama spouts that makes him so attractive to "liberal evangelicals." After all, the latter group have enthusiastically embraced postmodernism themselves, finding in it various excuses for their intellectual laziness, their "emergent" worldliness, their sloppy theological heterodoxy and, of course, their self-loathing neuroses -- neuroses that drive them to say or do almost anything that might distance them from those hymn-singing, Bible-thumping, creationist, fuddy-duddy fundamentalists who are their oh-so-embarrassing kinfolk.
("Please, Mr. Leno; don't make jokes about us anymore. We're not those judgmental, conservative Christians that picket abortion clinics, take the Bible literally, or wear buckles on their shoes. Not at all. That's so 1980s. In fact, we hate that kind even more than you do. No, please believe us, we're hip now. We're just like you!")
Jonah Goldberg's column, published in this morning's USA Today, provides an insightful examination of Obama's "PoMo" credentials. It will help you to understand where he's coming from about as well as anything you've read.
And, yes, it will also help you better understand the movement that has so compromised the soul of Western evangelicalism nowadays.