The Nauvoo Expositor Affair was a confrontation over plural marriage, political authority, and freedom of the press that turned William Law’s opposition to Joseph Smith into a public crisis. After Law established a church opposed to plural marriage, he used his own printing press to publish the Nauvoo Expositor. Smith responded not by answering the paper in print but by ordering its destruction through Nauvoo’s city government. The raid silenced the newspaper, but it helped transform a local dispute into a wider conflict over the power Smith exercised in Nauvoo.

Background: A break within the church

William Law had been a longtime church member and a trusted counselor to Joseph Smith. His opposition to plural marriage grew alongside his concern for Emma Smith, who rejected Joseph’s revelation on the subject. Law tried to persuade Joseph to withdraw the doctrine, but Joseph maintained that he had been commanded by God to teach it. The dispute became personal as well as doctrinal when Joseph made improper proposals to Law’s wife, Jane. In April 1844, Law demanded that Joseph publicly acknowledge his conduct and stop what Law considered religious abuses.

Joseph excommunicated Law. Law, in turn, called Joseph a fallen prophet and, on May 12, established the Reformed Mormon Church, which did not sanction plural marriage. His aim was reform rather than simply denunciation: he sought to create an institution organized like the main church but freed from the practice he opposed. That distinction made him a serious challenger. He had standing as a former insider, a public alternative to Joseph’s authority, and the resources to make his criticism visible.

Publication and destruction of the newspaper

Law’s wealth enabled him to buy a printing press. On June 7, 1844, the first and only issue of the Nauvoo Expositor appeared; one thousand copies were printed. Its lead editorial attacked Joseph’s leadership and the practice of plural marriage. The four-page paper also criticized Joseph’s mixing of church and state, his accumulation of political power, and his financial dealings. Its editors said that they intended to publish affidavits supporting their allegations, making the issue a beginning rather than a settled account of the dispute.

Many Nauvoo residents reacted angrily to the paper and its owners, while remaining devoted to Joseph. He saw the Expositor as a threat to his control of the church and called an emergency meeting of the city council. Acting as mayor, he declared the newspaper a public nuisance and ordered the city marshal to destroy its press and copies. The official rationale framed the paper as a danger to public order; the practical result was the suppression of a publication that had challenged the city’s most powerful leader.

On the evening of June 10, more than two hundred armed members of the Nauvoo Legion entered the Expositor offices. Hyrum Smith and Apostle John Taylor led the group under orders from Joseph, the legion’s commander. They broke down the door with a sledgehammer, smashed the press, scattered its type, and burned the remains. The action was carried out by an armed force acting on a municipal order, not through a public rebuttal or a judgment against the newspaper in an independent court.

Local power and a widening conflict

The publishers sought legal redress, charging Joseph and the others involved with crimes. But Nauvoo’s government and courts were under Joseph’s control, and everyone charged in connection with the destruction was exonerated, including Joseph. Law, fearing for his safety, had already fled the city. His Reformed Mormon Church dwindled and eventually disappeared. Thus the challenge failed as an institution inside Nauvoo even as the suppression of the paper drew attention to the powers that had defeated it.

The affair took place within the unusual political arrangement that had made Nauvoo a theocratic principality. A charter granted by the Illinois General Assembly in December 1840 had given the city distinctive sovereign powers. Joseph headed its government and commanded the Nauvoo Legion, a large and disciplined militia. By 1844, conflict over those local powers was already building: non-Mormon residents were alarmed by the Saints’ coordinated voting, Joseph’s influence in state politics, and his apparent willingness to place religious rule above constitutional restraint. The destruction of the Expositor confirmed their fear that political authority in Nauvoo could be used to silence opposition.

The response beyond the city was swift and threatening. An editorial in nearby Warsaw called for armed resistance, urging residents to defend the publishers’ property rights. The affair therefore made the press destruction a flashpoint in an existing divide between the Saints and their non-Mormon neighbors. Smith had prevailed over Law within Nauvoo, but the same concentration of power that secured that local victory helped persuade outsiders that the city’s leadership posed a danger to regional peace and stability.

Significance

The Nauvoo Expositor Affair brought competing claims of authority into direct collision. Joseph understood himself as divinely commissioned and had access to the machinery of municipal government and the Nauvoo Legion; Law relied on dissent within the church and the public circulation of a newspaper. Once Smith’s government ordered the press destroyed and then cleared those responsible, the dispute could no longer be understood as only a disagreement over marriage doctrine. It had become a test of whether a city’s leaders could invoke public order to suppress criticism of their own power.

The affair’s central reversal was that silencing the paper did not contain the controversy. It erased the Expositor as a continuing publication, but made the method of its suppression visible to the surrounding county. Law’s challenge was ultimately defeated in Nauvoo; the conflict he exposed, between religious government and the rights of those who resisted it, became more urgent beyond the city.