One of my pet peeves is when anti-Mormons accuse members of the Church of Jesus Christ of Latter-day Saints of conspiring to overthrow the U.S. Constitution. According to them, Mitt Romney's presidential run is part of said conspiracy.
If anti-Mormons took time to read our scriptures and listen rather than retransmit distorted statements about us, they might realize that Mormons uphold the U.S. Constitution as an inspired document. If you would like to read what our modern scriptures teach about the U.S. Constitution, here are the scriptural references:
D&C 98:4-10 (The principles of the U.S. Constitution belong to all mankind, and we are justified in befriending the U.S. Constitution); D&C 101:77-80 (God established the U.S. Constitution by the hands of wise men whom He raised up to protect the freedom of all mankind and to hold mankind accountable for their own actions); D&C 109:54 (Joseph Smith prayed that the U.S. Constitution would be established forever).
Further, D&C 134 is the Church's official stance on Government throughout the world. You'll notice we also believe in the separation of Church and State.
Additionally, this essay is excellent in outlining our views about the U.S. Constitution.