Both Christmas cards I received from President Bush avoided the word “Christmas”, settling instead for Holiday and Season of Goodwill, - not much different than what you may see on most of the Christmas Cards you would pick up. I do think such wording is the norm for cards coming from the Whitehouse - BUT, both cards also had inscribed Bible verses.
Christmas 2001
Thy Face , Lord Do I Seek; I believe that I shall see the goodness of the Lord in the land of the living.
Psalm: 27:8.13
Christmas 2000 (President Elect)
And You will seek me and find me when you search for me with all of your heart.
Jeremiah 29:13