Jefferson's Bible offers a case study in how politics and Christianity mix it up in America 

Rick Santorum’s near-miss in Iowa provides a reminder that, for many Republican voters (and not a few candidates), religion and politics overlap. If you need another reminder, though, consider this: recently, the Smithsonian has restored and put on display a weird and fantastic 19th-century book known as “The Jefferson Bible.” That’s Jefferson as in Thomas, and this private, personal document offers a useful case study in how politics and Christianity have mixed it up in American history, right up to today.