Of course not! (Why shine a light on ugly doctrine that puts Jesus in almost the exact same "premortal" camp as Satan?)
Lds "apostle" Russell Ballard, circa 2010:
From the article linked below:
"You remember Mr. (Mike) Huckabee (who was also vying to be the Republican candidate for president), who among other things said that Mormons believe that Jesus and the devil were brothers?" Ballard asked students. "Remember that? It went all over the media. "Well they are!" Ballard exclaimed to a laughing student body.
Here, we have an Lds general authority conceding that -- to quote him "Well they are!" in reference to the issue of whether "Jesus and the devil are brothers."
Now in case someone views that this information needs to be suppressed...not let it become aired out...or they think that we are overriding realities in our assessments of Mormonism, Elder Ballard concedes at this fireside chat adding:
"But they (the media and nonmembers) don't understand that, because they don't have the (LDS gospel) restoration. They don't understand the spiritual relationship that ... we are all sons and daughters of God, and that Lucifer was one of those and (that) he chose to use his agency in an unrighteous way."
Ballard speaks on Mormons in the media
I remember so many Mormons' reactions on and off FR...acting all offended. And yet, to paraphrase Ballard, who then came out and said, "Yup. What Huckabee said was 'so.' It's just that those non-restoration folks simply don't understand our belief system."