In bad faith
The key to the faith-based leadership is that if you say a thing enough times, it becomes true, regardless of the evidence.
Bush has pushed himself so many times as the truly Christian candidate that what makes itself out to be the Christian community in the USA (by which I mean the far-right fundy sect that represents many Christians but by no means everyone who believes in and tries to follow in the path of Jesus) seems to believe that John Kerry, a man of faith himself, is by comparison a Satanist.
So this fool can ignore the painful realities, the warmongering, the disregard for the poor and minorities and the vicious intolerance that Bush has come to personify, and can claim that Bush is the "godliest" president there has been.
I have to ask, who would want to worship a god that is personified in Bush?
That isn't the point though. For people like Aikman, the word "God" is a cipher. They worship themselves, their conservatism, their intolerance, their wealth, their disregard for others. For them, God is a narrowminded bigot, an irrealist, a hater. Yes, Aikman's sort of Christian should vote for Bush.