I was discussing this with my fiance last night as we were watching some footage of Hilary Clinton. We started a discussion on how presidents have to be sworn in on the bible. But what if you aren't religious? Or Christian? Then my fiance stated that most of if not all united state presidents are Christian, so that got me thinking: why is it that all presidents are Christian? Does it matter to you? (those of you from america) if your president is Christian or not? Please don't get mad at me for asking this question.. It's not meant as a insult or anything, I was just curious.