King,
You have to understand that as Christians we see everything in black and white. We believe in absolutes. Conservative Christians wil also be conservative in their politics. Those who believe that the Bible has to be adjusted to meet today's circumstances will also believe that the constitution has to "evolve" (that's a really dirty word to Christians) to meet today's setting.
I stand amazed at those who think we are inconsistent when we stand for the death penalty, but against abortion. It just goes to show how little they understand a Christian world view. The world did not understand Jesus and as we follow Him, it won't understand or like us either.