Disfavor grew between Corrill and the Mormons. Some Mormons had in the past accused him of opposing priesthood authority and "the Judgment of God" in his preference for autonomy and democracy in the church. In his only term in the Missouri House of Representatives, As a state representative after the armed conflict subsided, Corrill presented a petition from the Mormons for relief from their mistreatment. However, he continued to distance himself from the church, culminating in his excommunication in 1839 and publication of his account of the church's history and conflicts.