Taken from The Christian World: A Global History (2007):
Martin Marty writes on page 244 in the glossary,
Mormon Another name for the Church of Jesus Christ of Latter-day Saints, founded in the 1830s by Joseph Smith, who claimed direct divine revelation of a new covenant, one which most other Christians regard as a new tradition far from orthodox Christianity. It grows rapidly in many parts of the world.
Here is a good question: Does liberal scholar, Martin Marty, the man with some seventy-five honorary doctorates, think of the Church of Jesus Christ of Latter-day Saints “as a new tradition far from orthodox Christianity”?
Jesus in Idaho Falls 
I’m afraid I don’t understand the question since the answer seems so obvious. Of course he does. That’s what he wrote. What’s your point?
No point. I am just not sure what Marty personally believes is necessary doctrine for orthodox Christianity.