Chae Chan Ping v. United States : In a decision written by Justice Field, the court upheld the Scott Act, holding that Congress has broad powers in setting immigration policy.
Pollock v. Farmers' Loan & Trust Co. : In a 5–4 decision written by Chief Justice Fuller, the court struck down the Income Tax of 1894. The court ruled that the dividend, interest, and rent taxes levied by the act were unconstitutional because they constituted direct taxes that were not apportioned by state population. The court's ruling was effectively overturned by the Sixteenth Amendment.
United States v. E. C. Knight Co. : In a decision written by Chief Justice Fuller, the court blocked the government's attempt to use the Sherman Antitrust Act to prevent the American Sugar Refining Company's acquisition of E.C. Knight Co. The court ruled that manufacturing is an intrastate activity, and thus could not be regulated by the federal government.
Plessy v. Ferguson : In a 7–1 decision written by Justice Brown, the court declared that racial segregation does not violate the Equal Protection Clause so long as the "separate but equal" doctrine is followed. The decision allowed the continued existence of Jim Crow laws. Plessy was overruled by Brown v. Board of Education in 1954, and the Civil Rights Act of 1964 outlawed racial discrimination by the government.
Allgeyer v. Louisiana : In a decision written by Justice Peckham, the court established that the Due Process Clause created protections for freedom of contract. The case marked the beginning of the Lochner era, during which the court struck down numerous economic regulations.
Chicago, Burlington & Quincy Railroad Co. v. City of Chicago : In a decision written by Justice Harlan, the court held that the Fourteenth Amendment had incorporated the Takings Clause against state governments. This was the first case that incorporated a clause from the Bill of Rights, though further incorporation did not take place until the 1920s.
United States v. Wong Kim Ark : In a 7–2 decision written by Justice Gray, the court held that the Citizenship Clause had established birthright citizenship even for those whose parents are not American citizens. Under Elk v. Wilkins, the decision did not apply to Native Americans.
Lone Wolf v. Hitchcock : In a decision written by Justice White, the court ruled that the federal government has the power to unilaterally breach treaties made with Native American tribes. The decision allowed the federal government to take land from Native American tribes without providing compensation.
Swift & Co. v. United States : In a unanimous decision written by Justice Holmes, the court upheld the government's regulation of the "Beef Trust" under the Sherman Antitrust Act.
Lochner v. New York : In a 5–4 decision written by Justice Peckham, the court held that a state setting a maximum workweek of 60 hours for bakeries violated freedom of contract. The Lochner Era would continue until West Coast Hotel Co. v. Parrish.
Hodges v. United States : In a 7–2 decision written by Justice Brewer, the court held that the Thirteenth Amendment does not authorize Congress to protect labor rights from racially motivated attacks such as whitecapping. Jones v. Alfred H. Mayer Co. later overturned the case.
Adair v. United States : In a decision written by Justice Harlan, the court struck down part of the Erdman Act and declared that bans on "yellow-dog contracts" are unconstitutional. The court held that such bans unconstitutionally infringed on freedom of contract. The decision was largely superseded by the Norris–La Guardia Act of 1932.
Loewe v. Lawlor : In a unanimous decision written by Chief Justice Fuller, the court held that the Sherman Antitrust Act prevents the use of secondary boycotts by unions. The Norris–La Guardia Act effectively overturned this decision.
Bobbs-Merrill Co. v. Straus : In a unanimous decision written by Justice Day, the court established the first-sale doctrine.
Ex parte Young : In a decision written by Justice Peckham, the court held that lawsuits against state officials in federal court do not violate sovereign immunity.
Judicial philosophy
In contrast with the Waite Court, the Fuller Court used the Due Process Clause to strike down several economic regulations in defense of a laissez faire economy. The court struck down several federal regulatory laws and sought to maintain the autonomy of the states, but it also struck down state laws that it saw as impediments to interstate commerce. The Fuller Court ruled more favorably to the government in other cases, most notably Plessy, and granted the government wide latitude in administering colonial territories. The court also declined to extend due process protections into the sphere of criminal procedure. Like many other courts prior to 1941, the Fuller Court had strong consensual norms, which helped to keep the number of dissents to a minimum. No clear ideological blocs emerged during Fuller's tenure, but Justices Holmes, Day, Gray, and Brown tended to favor upholding laws, and Justices Shiras, Harlan, White, and Peckham were the most willing to overrule state legislatures. Justice Harlan was notable for his many dissents, earning him the moniker of the "Great Dissenter." The ideological homogeneity was a product of an era in which Republican presidents dominated, and the lone Democratic president shared the pro-business views of most Republicans. Fuller himself was regarded as a talented administrator generally in agreement with the court's philosophy, but not a dominant intellectual force.