Clayton v. Utah Territory was a Supreme Court case decided in 1876. The case involved a dispute between the Utah Territory and the Clayton family over the ownership of a piece of land. The Clayton family had been granted a patent to the land in 1868, but the Utah Territory had subsequently passed a law that allowed the state to take possession of the land. The Clayton family argued that the law was unconstitutional, as it violated their right to due process. The Supreme Court ultimately sided with the Clayton family, ruling that the Utah Territory had violated the family's right to due process. The Court held that the law was unconstitutional, as it allowed the state to take possession of the land without providing the Clayton family with any notice or opportunity to be heard. The Court also held that the law was an unconstitutional taking of private property without just compensation. This decision established the principle that the government must provide due process before taking private property.

In the dissenting opinion of Clayton v. Utah Territory, Justice Field argued that the majority decision was wrongfully decided and violated the Fourteenth Amendment’s Equal Protection Clause. He believed that a state could not deny voting rights to citizens based on their religious beliefs or lack thereof, as this would be an unconstitutional violation of equal protection under law. Furthermore, he argued that it was unfair for states to impose such restrictions on individuals who had already been granted citizenship by Congress in 1866 when they were admitted into the Union. He concluded his dissent by stating that if Congress intended for certain religions to have exclusive access to political power within a state then it should have made those intentions clear at the time of admission rather than allowing individual states to decide which religions are allowed full participation in politics and which ones are excluded from doing so.