Garry Wills is described as a liberal Christian, or a Christian liberal. He has a new book out called What Paul Meant, which is a companion book to his 2004 book, What Jesus Meant.
Here is an article on the man, the book and the take on the Apostle Paul.
anti-itch meditation 
ugh. I read a few paragraphs of the article about him and gave up. People who are out to explain why the Bible is not saying what it is saying tend to bother me a bit.