In the case of Mayflower Farms, Inc. v. Ten Eyck, Commissioner of the Department of Agriculture & Markets of New York et al., 1935, Mayflower Farms challenged a New York state law that required milk dealers to obtain licenses and adhere to price controls set by the state's Commissioner for Agriculture and Markets. The company argued that this law violated their rights under the Fourteenth Amendment as it interfered with interstate commerce and deprived them of property without due process. However, the Supreme Court upheld the constitutionality of these regulations in a unanimous decision stating that they were within states' police powers to protect public health and welfare. This ruling affirmed states' authority over local aspects of interstate commerce when necessary for public good.

In the dissenting opinion for Mayflower Farms, Inc. v. Ten Eyck, Justice McReynolds argued that the statute in question was unconstitutional as it violated the Due Process Clause of the Fourteenth Amendment by allowing arbitrary price fixing without any reasonable basis or standard. He contended that there were no safeguards against potential abuses and arbitrariness in setting prices for milk products under this law. The justice also expressed concern about how such a system could potentially lead to favoritism and discrimination among different producers and distributors within New York's dairy industry. Furthermore, he criticized his colleagues' majority decision for failing to adequately address these issues while upholding an unjustifiable intrusion into private business affairs by state authorities.