E.E. Evans, of the website GetReligion.org, often writes about how common usage of religious terminology has been changing as more and more people are disassociated from religious life and unfamiliar with the theological definitions of the words they employ, often to describe popular personalities and social trends. Through no fault of his own, our current president seems to particularly attract religious adjectives. [So much so that I've even heard him jokingly referred to as the Obamessiah and The Dalai Obama.]
At any rate, if this is a topic that interests you, I would encourage you to give this a read: The man from hope?
By the way, the author is an Episcopal priest with whom I attended seminary.