This job cites how Western culture and Christianity contributed to American government.
That is a very broad question that can be answered in many different ways - but for starters it would be helpful to look at the development of Western political culture/Christianity and its influence on the founders and founding documents, such as the US Constitution.
A great starting point is to look at how the concepts of "individual liberty" and the "consent of the governed" influenced western thought, starting in the Enlightenment of the 17th century.
You can go back to the Magna Charter (1215) and see how the divine and absolute right of monarchs began to be curbed by nobles, and eventually the middle class property owners, and so on.
John Locke is a great resource to look up as his writings and theories were tremendously ...
This job looks at the development of Western political culture/Christianity and its influence on the founders and founding documents.