Jewish by birth. Christian by faith.
Here's his letter to Rabbi Barry Freundel
[snip]
I'm a Jew who has accepted Christ and I am also very proud of my Jewish heritage, as Christ himself was. I therefore understand and respect the Jewish orthodox traditions, which honor the Sabbath, the calendar, the use of Hebrew in worship, and especially the study of the Talmud. .........
[end snip]
http://www.judicialwatch.org/printer_3072.shtml