From BYU:

This first and last edition of the paper declared that Joseph Smith had become a tyrant, ruling Nauvoo contrary to American principles of separation of church and state; that he had introduced into the Church doctrine and practices which were contrary to the original teachings of the Church, particularly that secretly he was practicing plural marriage which they termed "whoredoms and abominations." They announced their intention to seek the repeal of the Nauvoo Charter so that Nauvoo might become a city governed by American standards of democracy.

http://www.lds-mormon.com/06.shtml


Order of Joseph Smith, Mayor (June 10, 1844) To the Marshal of said City [Nauvoo], greeting.You are hereby commanded to destroy the printing press from whence issues the Nauvoo Expositor, and pi the type of said printing establishment in the street, and burn all the Expositors and libelous handbills found in said establishment; and if resistance be offered to your execution of this order by the owner or others, demolish the house: and if anyone threatens you or the Mayor or the officers of the city, arrest those who threaten you, and fail not to execute this order without delay, and make due return thereon.

By order of the City Council,JOSEPH SMITH, MAYOR

http://law2.umkc.edu/faculty/project...itororder.html