If an individual was tasked to determine his faith based on his actions, associates, and speeches he would say he is Muslim. He has made more than one speech extolling the virtues of the Muslim religion. I do not remember any speech he has made extolling the virtue of Christianity. I do not know what the hell he is. I do know he is not a christian in the classical sense of Christianity.
I bet he’s got a prayer rug in his office and 2nd floor residence.