A Congressional power of enforcement is included in a number of amendments to the United States Constitution. The language "The Congress shall have power to enforce this article by appropriate legislation" is used, with slight variations, in Amendments XIII, XIV, XV, XIX, XXIII, XXIV, and XXVI. The variations in the pertinent language are as follows: The Thirteenth Amendment leaves out the word "the", the Fourteenth Amendment states "The Congress shall have the power to enforce, by appropriate legislation, the provisions of this article." In addition to the amendments above, the Eighteenth Amendment states "The Congress and the several States shall have concurrent power to enforce this article by appropriate legislation."
Plessy v. Ferguson, 163 U.S. 537 (1896), was a landmark U.S. Supreme Court decision in which the Court ruled that racial segregation laws did not violate the U.S. Constitution as long as the facilities for each race were equal in quality, a doctrine that came to be known as "separate but equal". Notably the court ruled the existence of laws based upon race was not inherently racial discrimination. The decision legitimized the many state laws re-establishing racial segregation that had been passed in the American South after the end of the Reconstruction era in 1877. Such legally enforced segregation in the south would last into the 1960s.
Epperson v. Arkansas, 393 U.S. 97 (1968), was a landmark United States Supreme Court case that invalidated an Arkansas statute prohibiting the teaching of human evolution in the public schools. The Court held that the First Amendment to the United States Constitution prohibits a state from requiring, in the words of the majority opinion, "that teaching and learning must be tailored to the principles or prohibitions of any religious sect or dogma." The Supreme Court declared the Arkansas statute unconstitutional because it violated the Establishment Clause of the First Amendment. After this decision, some jurisdictions passed laws that required the teaching of creation science alongside evolution when evolution was taught. These were also ruled unconstitutional by the Court in the 1987 case Edwards v. Aguillard.
Near v. Minnesota, 283 U.S. 697 (1931), was a landmark decision of the US Supreme Court under which prior restraint on publication was found to violate freedom of the press as protected under the First Amendment. This principle was applied to free speech generally in subsequent jurisprudence. The Court ruled that a Minnesota law that targeted publishers of "malicious" or "scandalous" newspapers violated the First Amendment to the United States Constitution. Legal scholar and columnist Anthony Lewis called Near the Court's "first great press case".
City of Boerne v. Flores, 521 U.S. 507 (1997), was a landmark decision of the Supreme Court of the United States concerning the scope of Congress's power of enforcement under Section 5 of the Fourteenth Amendment. The case also had a significant impact on historic preservation.
Board of Trustees of the University of Alabama v. Garrett, 531 U.S. 356 (2001), was a United States Supreme Court case about Congress's enforcement powers under the Fourteenth Amendment to the United States Constitution. The Supreme Court decided that Title I of the Americans with Disabilities Act was unconstitutional, insofar as it allowed states to be sued by private citizens for money damages.
Oregon v. Mitchell, 400 U.S. 112 (1970), was a Supreme Court case which held that the United States Congress could set voting age requirements for federal elections but not for local or state elections. The case also upheld Congress's nationwide prohibition on literacy tests and similar "tests or devices" used as voting qualifications as defined in the Voting Rights Act of 1965. Congress had passed the Voting Rights Act Amendments of 1970 requiring all states to register citizens between the ages of 18 and 21 as voters. The state of Oregon objected to the lower voting age, and filed suit on the grounds that the act was unconstitutional. The respondent was John Mitchell in his role as United States Attorney General.
Hans v. Louisiana, 134 U.S. 1 (1890), was a decision of the United States Supreme Court determining that the Eleventh Amendment prohibits a citizen of a U.S. state to sue that state in a federal court. Citizens cannot bring suits against their own state for cases related to the federal constitution and federal laws. The court left open the question of whether a citizen may sue his or her state in state courts. That ambiguity was resolved in Alden v. Maine (1999), in which the Court held that a state's sovereign immunity forecloses suits against a state government in state court.
Giles v. Harris, 189 U.S. 475 (1903), was an early 20th-century United States Supreme Court case in which the Court upheld a state constitution's requirements for voter registration and qualifications. Although the plaintiff accused the state of discriminating in practice against black citizens, the Court found that the requirements applied to all citizens and refused to review the results "in practice," which it considered overseeing the state's process. As there was no stated intent in law to disenfranchise blacks, the Court upheld the state law.
Edelman v. Jordan, 415 U.S. 651 (1974), was a United States Supreme Court case that held that the sovereign immunity recognized in the Eleventh Amendment prevented a federal court from ordering a state from paying back funds that had been unconstitutionally withheld from parties to whom they had been due.
Seminole Tribe of Florida v. Florida, 517 U.S. 44 (1996), was a United States Supreme Court case which held that Article One of the U.S. Constitution did not give the United States Congress the power to abrogate the sovereign immunity of the states that is further protected under the Eleventh Amendment. Such abrogation is permitted where it is necessary to enforce the rights of citizens guaranteed under the Fourteenth Amendment as per Fitzpatrick v. Bitzer. The case also held that the doctrine of Ex parte Young, which allows state officials to be sued in their official capacity for prospective injunctive relief, was inapplicable under these circumstances, because any remedy was limited to the one that Congress had provided.
In American constitutional law, a statute is void for vagueness and unenforceable if it is too vague for the average citizen to understand. This is because constitutionally permissible activity may not be chilled because of a statute's vagueness. There are several reasons a statute may be considered vague; in general, a statute might be void for vagueness when an average citizen cannot generally determine what persons are regulated, what conduct is prohibited, or what punishment may be imposed. For example, criminal laws which do not state explicitly and definitely what conduct is punishable are void for vagueness. A statute is also void for vagueness if a legislature's delegation of authority to judges or administrators is so extensive that it could lead to arbitrary prosecutions. A law can also be "void for vagueness" if it imposes on First Amendment freedom of speech, assembly, or religion.
Alden v. Maine, 527 U.S. 706 (1999), was a decision by the Supreme Court of the United States about whether the United States Congress may use its Article I powers to abrogate a state's sovereign immunity from suits in its own courts, thereby allowing citizens to sue a state in state court without the state's consent.
Sáenz v. Roe, 526 U.S. 489 (1999), was a landmark case in which the Supreme Court of the United States discussed whether there is a constitutional right to travel from one state to another. The case was a reaffirmation of the principle that citizens select states and not the other way round.
Braunfeld v. Brown, 366 U.S. 599 (1961), was a landmark case on the issue of religious and economic liberty decided by the United States Supreme Court. In a 6–3 decision, the Court held that a Pennsylvania blue law forbidding the sale of various retail products on Sunday was not an unconstitutional interference with religion as described in the First Amendment to the United States Constitution.
Kimel v. Florida Board of Regents, 528 U.S. 62 (2000), was a US Supreme Court case that determined that the US Congress's enforcement powers under the Fourteenth Amendment to the US Constitution did not extend to the abrogation of state sovereign immunity under the Eleventh Amendment over complaints of discrimination that is rationally based on age.
Nevada Department of Human Resources v. Hibbs, 538 U.S. 721 (2003), was a United States Supreme Court case which held that the Family and Medical Leave Act of 1993 was "narrowly targeted" at "sex-based overgeneralization" and was thus a "valid exercise of [congressional] power under Section 5 of the Fourteenth Amendment."
In United States law, the federal government as well as state and tribal governments generally enjoy sovereign immunity, also known as governmental immunity, from lawsuits. Local governments in most jurisdictions enjoy immunity from some forms of suit, particularly in tort. The Foreign Sovereign Immunities Act provides foreign governments, including state-owned companies, with a related form of immunity—state immunity—that shields them from lawsuits except in relation to certain actions relating to commercial activity in the United States. The principle of sovereign immunity in US law was inherited from the English common law legal maxim rex non potest peccare, meaning "the king can do no wrong." In some situations, sovereign immunity may be waived by law.
Minnesota v. Clover Leaf Creamery Co., 449 U.S. 456 (1981), was a United States Supreme Court case which found no violation of the equal protection or commerce clauses in a Minnesota state statute banning retail sale of milk in plastic nonreturnable, nonrefillable containers, but permitting such sale in other nonreturnable, nonrefillable containers.
