Republican presidential hopeful
Mike Huckabee, an ordained Southern Baptist minister,
asks in an upcoming article, "Don't Mormons believe that Jesus and the devil are brothers?"
Thosse two bolded words should answer your question -- says it all.
You lost me.
The words (in bold) "Mike Huckabee" and "asks" proves something?
Now, all that said, one can debate on whether asking this question was wise or even relevant.
On the other hand, the answer according to www.lds.org is "yes".
One example following a brief search
The Aaronic Priesthood: Return with Honor
"The Aaronic Priesthood years are a preparatory period of our lives when we prepare ourselves in this earth life to be worthy to return with honor to the presence of our Heavenly Father.
We cannot remember that we once lived with our Heavenly Father and Jesus Christ and that we probably sat in meetings much like this, where the Fathers plan for us was explained. We cannot remember that Lucifer, a son of God the Father, a brother of Jesus Christ, rebelled against Gods plan and, in his rebellion, promised he would bring us all back home"
Point is, this may or may not have been smart, but it does appear to be true based on info from LDS itself.