Doug answered...

The short answer: no.

The fun answer: I am always a bit surprised when I get asked whether Mormon's practice polygamy, especially since it is a point of pride among Mormons that we tend to be more "monogomous" than the general population - the divorce rate among Mormons is much lower than it is among non-Mormons, hence marriage to a second, third, or fourth husband or wife is much less likely.

The informative answer: In the first half of the 19th century and beginning with Joseph Smith, the founding Prophet of the Church of Jesus Christ of Latter-day Saints, the Lord commanded certain men to take more than one wife for reasons that are known in full only to God himself. These men and women sought in faith to live the commandments of God as they were taught by the Prophets of God. The practice of plural marriage continued in a highly organized and church-sanctioned fashion until the Lord commanded that the practice be discontinued in the year 1890.

I am a descendant of the fourth wife of one such man. I have read his journals and heard accounts of his day to day interactions with his family and friends. He was a good and an honest man, as were most if not all of the men to whom the command was given from the Lord to take more than one wife, both in the early days of the Church of Jesus Christ of Latter-day Saints and in Biblical times.