Religion of State Governors

[rob in cal]

    Fascinating how the vast majority of elected officials always seem to have some sort of religious ID, when a cross section of America would certainly have a substantial amount of believers, but also a pretty hefty amount of non believers.  This always reminds me of how Northern Ireland is supposed to be two thirds Protestant and one third Catholic when the rest of Europe is supposed to be virtually non religious.  In other words, in the case of politicians in general and regions defined by a religous divide, how often is it the case that people are just taking a religious label as a form of cultural identifier?