Belonging to a denomination does not make one a Christian. A person becomes a Christian when he makes a personal decision to make Christ Lord of his life. A Christian can tell you when he was saved, and the circumstances surrounding it.
You are misunderstanding my post. You are also using your own definition of Christian, and I had no intention of starting a theology back-and-forth on an open thread.
John Ellis Bush is a Roman Catholic. Our Faith has it’s own guidelines to define Christianity, and who is a Christian. Those who believe as old line Presbyterians belive are regarded as Christian, with valid Baptism and Matrimony (if with another Christian).
John Ellis Bush stated that Trump is not a Christian. I am countering that Trump may well be a Christian, based on what he says his belief system is Presbyterian.