The U.S. Supreme Court case City of El Paso v. Simmons (1964) centered around a land dispute in Texas, where the city of El Paso sought to reclaim lands sold under an 1895 statute that allowed for reversion if the purchaser failed to pay interest for five years. The defendant, Simmons, had purchased such a parcel and defaulted on his payments during the Great Depression but later attempted to repay after World War II when he discovered oil on it. However, by then Texas had enacted a new law limiting reversionary rights only within five years of default. Simmons argued that this change violated his contract clause rights as per the U.S Constitution since it retroactively altered terms agreed upon at purchase time. The court ruled against him stating that while states cannot pass laws impairing contracts' obligations, they can modify their own contractual obligations when exercising public functions like managing state property or resources; provided these modifications are reasonable and necessary. In essence, this ruling upheld states' sovereign power over public resource management even if it might affect existing contracts with private entities.

In the dissenting opinion for City of El Paso v. Simmons, Justice Black argued that the majority's decision violated the Contract Clause of the Constitution by allowing Texas to reclaim land sold under a contract if payments were not made within five years. He believed this retroactively altered contracts and disadvantaged those who purchased land in good faith, thus violating their rights. Furthermore, he disagreed with the majority's view that public interest justified this violation as it could potentially lead to arbitrary government action against private contractual rights. According to him, such an interpretation would render the Contract Clause meaningless and leave citizens vulnerable to legislative interference in their private agreements.