The written text of the state and federal constitutions. The body of  judicial precedent  that has gradually developed through a process in which courts  interpret, apply, and explain the meaning of particular constitutional  provisions and principles during a legal proceeding. Executive,  legislative, and judicial actions that conform with the norms prescribed  by a constitutional provision.
 The text of the U.S. Constitution  is marked by four characteristics: a delegation of power, in which the  duties and prerogatives of the executive, legislative, and judicial  branches are delineated by express constitutional provisions; a  separation of power, in which the responsibilities of government are  divided and shared among the coordinate branches; a reservation of  power, in which the sovereignty  of the federal government is qualified by the sovereignty reserved to  the state governments; and a limitation of power, in which the  prerogatives of the three branches of government are restricted by  constitutionally enumerated individual rights, unenumerated rights  derived from sources outside the text of the Constitution, and other  constraints inherent in a democratic system where the ultimate source of  authority for government action is the consent of the people.
 In  deciding their cases, courts look to these constitutional provisions  and principles for guidance. Once a court has interpreted a  constitutional provision in a certain fashion, it becomes a precedent.  Under the doctrine of stare  decisis, the judicial branch is required to adhere to existing  precedent in all future cases presenting analogous factual and legal  circumstances, unless it has a compelling reason for deviating from the  precedent or overruling it.
 A state or federal law is said to be  constitutional when it is consistent with the text of a constitutional  provision and any relevant judicial interpretations. A law that is  inconsistent with either the written text or judicial interpretation of a  constitutional provision is unconstitutional.
 The  Constitution
 The U.S. Constitution is the highest law in  the land and the foundation on which all U.S. law has been built. By  establishing a structure for the federal government and preserving  certain areas of sovereignty for the states, the Constitution has  created a system of government that has allowed every area of civil,  criminal, and administrative law to evolve with the needs of society.  The federal Constitution became binding on the U.S. people in 1788 when  New Hampshire, pursuant to Article VII, became the ninth state to vote  for ratification.
  The federal Constitution comprises seven articles and twenty-six  amendments. Articles I, II, and III set forth the basic structure of the  U.S. government. Article I defines congressional lawmaking powers,  Article II sets forth the presidential executive powers, and Article III  establishes federal judicial powers. The first ten amendments to the  U.S. Constitution, known as the Bill  of Rights, enumerate certain individual liberties that must be  protected against government infringement. The rest of the Constitution  contains miscellaneous other provisions, many of which are intended to  maintain a federalist system of government in which the federal  Constitution is the supreme law of the land and the federal government  shares sovereignty with the states.
 Article I: The Lawmaking  Power
 Article I of the Constitution allocates the lawmaking  power to Congress. Section 1 provides that "[a]ll legislative Powers  herein granted shall be vested in a Congress of the United States, which  shall consist of a Senate and a House of Representatives." Article I  also requires that candidates running for the House of Representatives  be elected directly by the residents of each state. Originally, Article I  endowed the state legislatures with the power to choose members of the  Senate. However, the Seventeenth  Amendment now requires all senators to be elected directly by the  people of their home state.
 Section 8 enumerates specific  lawmaking powers that Congress may exercise. These include the power to  declare war; raise and support armies; provide and maintain a navy;  regulate commerce; borrow and coin money; establish and collect taxes;  pay debts; establish uniform laws for immigration, naturalization, and  bankruptcy; and provide for the common defense and general welfare of  the United States. Both the Senate and the House must approve all bills  before they are submitted to the president. If the president vetoes a  bill, Section 7 authorizes Congress to override the veto  by a two-thirds vote in both houses. Because Congress is a public body,  this article requires the House and Senate to record and publish its  proceedings, including the votes made by any of its members.
 Section  8 also grants Congress the power to pass all laws that are "necessary  and proper" to the performance of its legislative function. In McCulloch  v. Maryland, 17 U.S. (4 Wheat.) 316, 4 L. Ed. 579 (1819), the Supreme  Court broadly interpreted the Necessary and Proper Clause to grant  Congress the implied powers to enact all laws that are useful,  convenient, or essential to fulfilling its lawmaking and fiscal  responsibilities. Thomas Jefferson had earlier argued that the Necessary  and Proper Clause authorized Congress only to enact measures that are  indispensable to the implementation of the enumerated powers.
 Congress  frequently relies on its authority to regulate commerce  as a justification for the legislation it enacts. Section 8 gives  Congress the "power to regulate commerce among the several states." In Gibbons  v. Ogden, 22 U.S. (9 Wheat.) 1, 6 L. Ed. 23 (1824), the Supreme  Court ruled that congressional power to regulate commerce is plenary  (complete in itself) and extends to all interstate commerce (commercial  activity that concerns more than one state). The Court said that  intrastate commerce (commercial activity that is conducted exclusively  within one state) is beyond the reach of this congressional power.
 Congressional  commerce power reached its zenith in Wickard v. Filburn, 317  U.S. 111, 63 S. Ct. 82, 87 L. Ed. 122 (1942), where the Supreme Court  ruled that Congress has authority to regulate a family farm that  produces and consumes its own wheat. The Court said that "even if [a  farm's] activity be local, and though it may not be regarded as  commerce, it may still … be reached by Congress, if it exerts a  substantial economic effect on interstate commerce … irrespective of  whether such effect [is] direct or indirect."
 This seemingly  unfettered power was later limited, in United States v. Lopez,  ___U.S.___, 115 S. Ct. 1624, 131 L. Ed. 2d 626 (1995), where the Supreme  Court ruled that mere possession of a gun at or near a school does not  substantially affect interstate commerce and may not be regulated at the  federal level. Although the interstate commerce power has been given an  expansive reading in modern times, the Court said in Lopez, the  scope of congressional authority in this area 
 must be  considered in light of our dual system of [state and federal] government  and may not be extended so as to embrace effects upon interstate  commerce so indirect and remote that to embrace them, in view of our  complex society, would effectually obliterate the distinction between  what is national and what is local and create a completely centralized  government.
 Article I of the Constitution not only  delegates specific powers to Congress, it also forbids Congress to take  certain action. Section 9, for example, prohibits Congress from passing  bills of attainder and ex  post facto laws. (A bill of attainder is a legislative act  that imposes punishment on a party without the benefit of a judicial  proceeding. An ex post facto law makes criminal or punishes  conduct that was not illegal at the time it occurred.) Section 9 further  prohibits Congress from suspending habeas  corpus (a citizen's right to protection against illegal  imprisonment) except as may be necessary to preserve national security  in time of rebellion or invasion. Although the Constitution delegated  this power to Congress, President Abraham Lincoln suspended habeas  corpus during the Civil War without congressional assent. Certain state  legislative powers, such as the power to make treaties, alliances, and  confederations, are also prohibited by Article I.
 Article II:  The Executive Power
 Congressional power is not absolute. The  Framers of the Constitution were familiar with the abuses of absolute  power. In the century preceding the American Revolution, England had  endowed Parliament with unlimited sovereignty. This arrangement replaced  an earlier system of government in which the English monarchy ruled  with a tyrannical scepter. In the United States, the Framers sought to  create a system of checks and balances in which the executive and  legislative branches would share power with each other and with the judiciary.  In this light, many of the powers delegated to the president must be  viewed in conjunction with the powers delegated to the coordinate  branches of government.
 Article II provides that "[t]he executive  Power shall be vested in a President of the United States … [who] shall  hold … Office during the Term of four Years … together with the Vice  President." The electoral  college, which provides the method by which the president and vice  president are elected, derives its constitutional authority from  Article II as well as from the Twelfth and Twenty-third Amendments. The Twenty-second  Amendment limits the president to two terms in office, and the  Twentieth and Twenty-fifth Amendments set forth the order of succession  for presidents who are unable to begin their term or continue in office.
  Article II, Section 2, makes the president the commander in chief of  the armed forces. Yet only Congress has the power to declare war.  Between these two powers lies a gray area in which presidents have  exercised the prerogative to commit U.S. troops to foreign military  excursions without congressional approval. The U.S. involvement in the Vietnam  War resulted from one such exercise of power. In response to these  executive maneuvers, Congress passed the War Powers Resolution (Pub. L.  No. 93-148 [50 U.S.C.A. § 1541 et seq.]), which restricts the  president's authority to involve the United States in foreign  hostilities for more than sixty days without the approval of Congress.
  The president also shares power with Congress in other areas under  Article II. Section 2 authorizes the president to make treaties with  foreign governments, but only with the advice and consent of the Senate.  The president must also seek senatorial approval when appointing  ambassadors; federal judges, including Supreme Court justices; and other  public ministers.
 Section 4 states that the president may be  removed from office only through impeachment  for "Treason, Bribery, or other High Crimes and Misdemeanors." The  House is responsible for drafting articles of impeachment (accusations  of misconduct), and the Senate is responsible for holding an impeachment  trial. A two-thirds vote in the Senate is required for conviction.
 Although  the president participates in the lawmaking process by preparing  budgets for congressional review, recommending legislation on certain  subjects, and signing and vetoing bills passed by both houses, no formal  lawmaking powers are specifically delegated to the executive  branch. The president nonetheless "legislates" by issuing executive  orders, decrees, and proclamations. No express provision of the  Constitution delineates the parameters of this executive lawmaking  power. However, in Youngstown Sheet & Tube Co. v. Sawyer, 343  U.S. 579, 72 S. Ct. 863, 96 L. Ed. 1153 (1952), the Supreme Court set  forth some guidelines. Known as the Steel Seizure case, Youngstown  examined the issue of whether the president of the United States could  order the government seizure of steel mills that were crippled by a  labor strike  during the Korean War. In holding the executive order unconstitutional,  the Supreme Court ruled that "the President's power to see that the  laws are faithfully executed refutes the idea that [the president] is to  be a lawmaker."
 Justice Robert H. Jackson, in a concurring  opinion, set forth an analysis by which the Supreme Court has  subsequently evaluated the constitutionality of presidential action.  Jackson opined that presidential  powers are not fixed, but fluctuate according to "their disjunction  or conjunction with those of Congress." When the president acts  pursuant to congressional authorization, the action carries maximum  authority. When the executive acts contrary to congressional will,  presidential powers are at their lowest ebb. Between these positions,  when a president faces an issue on which Congress is silent, the  executive acts in "a zone of twilight in which [the president] and  Congress may have concurrent authority, or in which the distribution is  uncertain." In such instances, Jackson reasoned, courts must balance the  interests of the parties and of society to determine if a particular  executive action has violated the separation of powers.
 Another  area that has stirred debate over the appropriate separation of powers  involves the delegation of legislative, executive, and judicial  authority to federal administrative bodies. Since the mid-1930s, the  United States has seen an enormous growth in the administrative state.  Administrative agencies have been created to establish, evaluate, and  apply rules and policies over a diverse area of law, including taxes,  securities, transportation, antitrust, the environment, and employment  relations. Federal administrative bodies are created by statute, and  Congress has the authority to prescribe the qualifications for  administrative officials who are appointed by the president, courts of  law, and heads of government departments.
 The National Labor  Relations Board (NLRB) demonstrates the overlapping powers that may be  exercised by an administrative body. The NLRB is empowered by statute to  issue regulations that govern union activities. Such regulations are  virtually indistinguishable from legislative enactments and are  considered no less authoritative. The NLRB also adjudicates disputes  between unions and employers, with an administrative law judge presiding  over such cases. Finally, the NLRB is endowed with the power to make  prosecutorial decisions, a power traditionally exercised by the  executive branch. Although successful challenges have been lodged  against the delegation of certain powers to federal administrative  bodies, by and large, the Supreme Court has permitted administrative  officials and agencies to play all three government roles.
 Article  III: The Judicial Power
 Article III provides that "[t]he  judicial Power of the United States, shall be vested in one supreme  Court, and in such inferior Courts as the Congress may from time to time  ordain and establish." Pursuant to this constitutional authorization,  Congress has created a federal judicial system comprising a lower tier  of federal trial courts, known as the U.S. district courts, and an  intermediate tier of federal appellate courts, known as the U.S. courts  of appeals. At least one federal district court is located in each of  the fifty states.
 The federal appellate courts consist of eleven  numbered circuit courts plus the Court of Appeals for the District of  Columbia. Each federal appellate court has jurisdiction  over a certain geographic area and may only hear appeals from federal  district courts within that jurisdiction. Specialized courts of appeals  have been created to hear appeals concerning patents  (the Court of Appeals for the Federal Circuit), international trade  (the Court of International Trade), and military matters (the Court of  Military Appeals). Parties aggrieved by a decision made by any of these  federal appellate courts may appeal their case to the Supreme Court,  which has the ultimate judicial power. Cases that originate in state  court and present a federal question may also be appealed to the U.S.  Supreme Court.
 The Supreme Court is not required to hear every  case that is appealed to it; instead, the Court has broad discretion to  accept or decline cases that are appealed by a lower court. Only four  justices need to vote in favor of hearing an appeal before a writ of certiorari  will be granted. Certiorari is a device that allows the Supreme Court  to call up the records of a lower court and review them in order to  identify important legal questions that need to be resolved. Granting  "cert" has no bearing on the Court's subsequent resolution of a case.  The Court is asked to review about 5,000 cases a year, and grants  certiorari in less than 250 of them.
  Federal  courts do not have jurisdiction to hear every kind of lawsuit.  Article III lists certain types of cases that may be heard by the  federal judiciary, including cases arising under the Constitution; under  treaties with foreign nations; and under federal laws passed by  Congress, the executive, or an administrative body. Federal courts also  have jurisdiction to hear lawsuits between two or more states, between  citizens of different states, and between a citizen or government of one  state and a citizen or government of a foreign country.
 The  Supreme Court has original  jurisdiction over cases involving ambassadors and other public  ministers as well as cases in which a state government is a party.  Original jurisdiction gives a court the power to hear a lawsuit from the  beginning, rather than on appeal. This grant of original jurisdiction  does not preclude Congress from giving original jurisdiction to other  courts over the same matters. In fact, Congress has granted concurrent  original jurisdiction to the federal district courts for all  controversies except those between state governments.
 Nowhere in  Article III, or elsewhere in the Constitution, is the power of the  federal judiciary defined. Historically, the role of English and U.S.  courts was to interpret and apply the laws passed by the other two  branches of government. At the close of the eighteenth century, it was  unclear whether that role included the prerogative of judicial  review, which is the authority of state and federal courts to  review and invalidate laws passed by legislatures that violate a  constitutional provision or principle.
 In Marbury v. Madison,  5 U.S. (1 Cranch) 137, 2 L. Ed. 60 (1803), the U.S. Supreme Court  clarified this ambiguity by pronouncing that it "is emphatically the  duty of the judicial department to say what the law is. Those who apply  the rule to particular cases, must of necessity expound and interpret  the rule. If two laws conflict with each other, the court must decide on  the operation of each." Because the federal Constitution is the supreme  law of the land, the Court reasoned, any laws that violate the  Constitution must be declared void.  It was the essence of judicial duty, the Court intimated, for judges to  evaluate the constitutionality of a particular act, because judges are  not elected and are therefore independent from the political  considerations that may have motivated the popular branches of  government to enact that law. The Court reasoned that the executive and  legislative branches could not be impartial arbiters of their own laws.
  The Bill of Rights
 When the U.S.  Constitution was ratified by the states in 1789, it contained no bill of  rights. During the last days of the Constitutional Convention, one of  the delegates proposed that a bill of rights be included, but this  proposal was voted down by every state. Many Framers of the Constitution  believed that there was no need for a bill of rights because the powers  of Congress and of the president were explicitly enumerated and  limited, and no provision of the Constitution authorized any branch of  government to invade the personal liberties of U.S. citizens.
 Other  Framers were concerned that any list of rights would be hopelessly  incomplete and that the government would deny any liberties left  unmentioned. This concern was ultimately expressed by the Ninth  Amendment to the U.S. Constitution, which provides that "[t]he  enumeration in the Constitution, of certain rights, shall not be  construed to deny or disparage others retained by the people." The Ninth  Amendment was later relied on by the Supreme Court to recognize the  unenumerated right of married adults to use birth control (Griswold  v. Connecticut, 381 U.S. 479, 85 S. Ct. 1678, 14 L. Ed. 2d 510  [1965]).
 By 1791, the need for a bill of rights was viewed in a  different light. The residents of the states soon realized that  government by the will of the majority not only achieved democracy, it  sometimes achieved majoritarian tyranny. The system of checks and  balances created by the original Constitution was insufficient to avoid  the pitfalls of absolute power endemic to the English form of government  that the American colonists had overthrown. A bill of rights was needed  to serve as a bulwark between individual liberty and arbitrary  government power.
 As with each of the twenty-six amendments to  the Constitution, the Bill of Rights was proposed by a two-thirds  majority in both houses of Congress, and ratified by three-fourths of  the states as required by Article V. The Bill of Rights, which comprises  the first ten amendments to the Constitution, contains both procedural  and substantive protections. In some instances, these protections  guarantee the right to do, say, or believe something without government  interference. In other instances, these protections guarantee the right  to refrain from doing, saying, or believing something without government  coercion.
 The first three amendments provide substantive  protections. The First  Amendment guarantees freedom of speech, press, religion, assembly,  and petition. The Free Speech Clause protects "thoughts that we hate" (United  States v. Schwimmer, 279 U.S. 644, 49 S. Ct. 448, 73 L. Ed. 889  [1929] [Holmes, J., dissenting]). Such thoughts can be expressed  verbally, as in a racially derogatory remark, or in writing, as in a  Marxist-Leninist pamphlet denouncing the U.S. government, and still  receive First Amendment protection. The First Amendment also protects  certain symbolic expression, such as burning the U.S. flag in protest  over government policy (Texas v. Johnson, 491 U.S. 397, 109 S.  Ct. 2533, 105 L. Ed. 2d 342 [1989]). The Supreme Court has ruled that no  political speech may be curtailed by the government unless it presents a  clear and present danger of imminent lawless action (Brandenburg v.  Ohio, 395 U.S. 444, 89 S. Ct. 1827, 23 L. Ed. 2d 430 [1969]).
 The  Free Press Clause prohibits the government from censoring news stories  in the print and electronic media merely because the content of the  stories is critical of the government. Even news stories containing  confidential or classified information may not be suppressed unless  publication would result in a "grave and irreparable threat to the  public interest" (New York Times v. United States, 403 U.S. 713,  91 S. Ct. 2140, 29 L. Ed. 2d 822 [1971]). The legal doctrine whereby the  government suppresses a news story prior to publication is known as prior  restraint (Near v. Minnesota, 283 U.S. 697, 51 S. Ct. 625,  75 L. Ed. 1357 [1931]).
 Under the Free Press Clause, media  outlets cannot be held liable in civil court for money damages  merely because a published story contains an inaccuracy or falsehood.  The Supreme Court has ruled that the media are immune from libel actions  brought by public officials unless the plaintiff can demonstrate that a  particular story was printed or aired with knowledge that it was false  or in reckless disregard of its veracity, a principle that has become  known as the "actual-malice" standard (New York Times v. Sullivan,  376 U.S. 254, 84 S. Ct. 710, 11 L. Ed. 2d 686 [1964]). Finally, the  media cannot be punished with civil or criminal sanctions for publishing  pornographic material unless that material rises to the level of obscenity  (Miller v. California, 413 U.S. 15, 93 S. Ct. 2607, 37 L. Ed. 2d  419 [1973]).
 There are two religion  clauses in the First Amendment. One guarantees the free exercise of  religion. In most instances, the Free Exercise Clause prohibits the  government from compelling a person to act contrary to his or her  religious beliefs. For example, in Wisconsin v. Yoder, 406 U.S.  205, 92 S. Ct. 1526, 32 L. Ed. 2d 15 (1972), the Supreme Court held that  a state cannot compel Amish parents to send their children to school  past the eighth grade when doing so would violate their religious faith.  However, in Reynolds v. United States, 8 U.S. 145, 25 L. Ed. 244  (1879), the Supreme Court refused to exempt Mormons from a federal law  against bigamy,  reasoning that polygamy  was more of a religious practice than a religious belief.
 The  other religion clause in the First Amendment prohibits the government  from establishing religion. The Framers drafted the Establishment Clause  to prevent the federal government from passing legislation that would  create an official national church in the United States as Great Britain  had done with the Anglican Church in England. Since the early 1970s,  the Supreme Court has applied the Establishment Clause more broadly to  strike down certain forms of government assistance to religion, such as  financial aid. Such assistance will be invalidated unless the government  demonstrates that it has a secular purpose with a primary effect that  neither advances nor inhibits religion, nor fosters excessive  entanglement between government and religion (Lemon v. Kurtzman,  403 U.S. 602, 91 S. Ct. 2105, 29 L. Ed. 2d 745 [1971]).
 The  Second and Third Amendments also provide substantive protections. The Second  Amendment acknowledges that a "well regulated Militia" is  "necessary to the security of a free State," and guarantees "the right  of the people to keep and to bear Arms." The right to bear arms is not  absolute. It restricts only federal laws regulating the use and  possession of firearms, and has no applicability to state governments (Presser  v. Illinois, 116 U.S. 252, 6 S. Ct. 580, 29 L. Ed. 615 [1886]). In  addition, Congress may prohibit the possession or use of a firearm that  lacks any reasonable relationship to the preservation or efficiency of a  well-regulated militia  (United States v. Miller, 307 U.S. 174, 59 S. Ct. 816, 83 L. Ed.  1206 [1939]). Federal courts have interpreted the term militia  to include only military groups that are organized by the state  governments, such as the National Guard, and to exclude private military  groups that are not associated with the government, such as the Kansas  Posse Comitatus (United States v. Oakes, 564 F.2d 384 [10th Cir.  1977]).
 The Third  Amendment, which is an outgrowth of the American Revolution,  prohibits the government from compelling homeowners to house soldiers  without their consent. Although the Supreme Court has never decided a  case that directly involved the forced quartering of soldiers, the Court  of Appeals for the Second Circuit ruled that the Third Amendment's  protections apply to the National Guard (Engblom v. Carey, 724  F.2d 28 [2d Cir. 1982]).
 The Fourth, Fifth, Sixth, Seventh, and  Eighth Amendments contain a mixture of procedural and substantive  rights. Most of the procedural rights pertain to criminal  law. As such, these rights offer protection against  unconstitutional actions taken by government bodies and officials, such  as law enforcement agencies and agents. These rights do not offer  protection against action taken by private citizens unaffiliated with  the government. For example, the Fourth  Amendment prohibits the government from performing unreasonable  searches and seizures and from issuing warrants on less than probable  cause. The procedural requirements of the Fourth Amendment protect  homes, papers, and other personal belongings in which an individual can  demonstrate a "reasonable expectation of privacy" (Katz v. United  States, 389 U.S. 347, 88 S. Ct. 507, 19 L. Ed. 2d 576 [1967]).
 The  Fifth  Amendment offers procedural safeguards to criminal defendants and  suspects. It provides that no person shall be held to answer for a  capital or infamous offense unless first indicted by a grand  jury. The Fifth Amendment further safeguards defendants from being  "twice put in jeopardy of life or limb" for the "same offence." It also  prohibits the government from compelling someone to incriminate himself  or herself. The right to be apprised of many of these procedural  protections during custodial police interrogations, through what are  known as Miranda warnings, is derived from the Fifth Amendment (Miranda  v. Arizona, 384 U.S. 436, 86 S. Ct. 1602, 16 L. Ed. 2d 694 [1966]).
  The Sixth  Amendment provides a panoply of procedural protections for criminal  defendants. Under the Sixth Amendment, defendants are entitled to  notice of any criminal accusations against them. The Sixth Amendment  guarantees the right to a jury  trial for all crimes more serious than a petty offense. The Sixth  Amendment guarantees the right to be represented by an attorney during a  criminal proceeding, and entitles indigent defendants to a  state-appointed lawyer when they are charged with a misdemeanor  or more serious offense (Gideon v. Wainwright, 372 U.S. 355, 83  S. Ct. 792, 9 L. Ed. 2d 799 [1963]). A defendant's right to a speedy and  public trial in which she or he can cross-examine adverse witnesses and  subpoena  favorable witnesses is also protected by the Sixth Amendment.
 The  protections offered by the Eighth  Amendment are more substantive. This amendment forbids the  government to inflict a punishment that is "cruel and unusual." The  Eighth Amendment also prohibits the government from setting bail  in an excessive amount and from imposing a fine that is  disproportionate to the seriousness of the crime. Under the Cruel and  Unusual Punishments Clause, the Supreme Court has ruled that it is not  necessarily unconstitutional for the government to execute a mentally  retarded person (Penry v. Lynaugh, 492 U.S. 302, 109 S. Ct. 2934,  106 L. Ed. 2d 256 [1989]) or a juvenile above the age of fifteen (Stanford  v. Kentucky, 492 U.S. 361, 109 S. Ct. 2969, 106 L. Ed. 2d 306  [1989]).
 Some of the protections offered by the Bill of Rights  apply to civil proceedings. For example, the Seventh  Amendment guarantees the right to a jury trial in civil "Suits at  common law." In condemnation proceedings, the Fifth Amendment recognizes  the power of eminent  domain, by which the government may appropriate a piece of property  owned by a private citizen and convert it to a public use.  Concomitantly, the Fifth Amendment guarantees the right to "just  compensation" for private landowners when the government exercises its  power of eminent domain.
 Due Process Clauses
  Of all the liberties protected by the Bill of Rights, none has been a  greater source of constitutional litigation than due process. The Fifth  Amendment provides that no person shall be deprived of "life, liberty,  or property, without due process of law." The Supreme Court has  interpreted this provision to regulate actions taken by only the federal  government, not the state governments (Barron v. Baltimore, 32  U.S. [7 Pet.] 243, 8 L. Ed. 672 [1833]).
 Broadly speaking, the  Due Process Clause of the Fifth Amendment guarantees litigants the right  to be informed of any legal action being taken against them, and the  opportunity to be heard during a fair proceeding in which they may  assert relevant claims and defenses. Specifically, a litany of  procedural protections have been recognized by the Supreme Court as  essential to the concept of due process. For example, in criminal cases,  the Due Process Clause requires that the prosecution prove its case beyond  a reasonable doubt before a conviction may be obtained. In civil  cases, the Due Process Clause prohibits a court in one state from  asserting jurisdiction over a resident in another state unless that  resident has sufficient contacts with the jurisdiction in which that  court sits.
 The Fourteenth  Amendment also contains a Due Process Clause. Whereas the Due  Process Clause of the Fifth Amendment regulates only the federal  government, the Due Process Clause of the Fourteenth Amendment regulates  actions taken by state governments. During the twentieth century, the  Supreme Court has interpreted the Due Process Clause of the Fourteenth  Amendment to make most of the liberties enumerated in the Bill of Rights  applicable to the states.
 Through a series of decisions, the  Supreme Court has ruled that certain liberties guaranteed in the Bill of  Rights are too fundamental to be denied protection by the state  governments. Only the right to bear arms, the right to be indicted by a  grand jury, the right to a jury trial in civil cases, the right against  excessive bail and fines,  and the right against involuntary quartering of soldiers have not been  made applicable to the states. Because these constitutional guarantees  remain inapplicable to state governments, the Supreme Court is said to  have selectively incorporated the Bill of Rights into the Due Process  Clause of the Fourteenth Amendment.
 The Supreme Court has  interpreted the Due Process Clauses to have a substantive content in  addition to their procedural content. Procedurally, due process  prescribes the manner in which the government may deprive persons of  their life, liberty, or property. In short, the procedural guarantees of  due process entitle litigants to fair process.
 Substantively,  the Due Process Clauses of the Fifth and Fourteenth Amendments protect  persons from legislation infringing on certain individual rights. Such  individual rights may be expressly enumerated in a constitutional  provision, as are the liberties that are enumerated in the Bill of  Rights and have been incorporated into the Due Process Clause of the  Fourteenth Amendment. Since Dred Scott v. Sandford, 60 U.S. (19  How.) 393, 15 L. Ed. 691 [1856]), where the Supreme Court recognized a  slave owner's property interest in his slaves, the Due Process Clauses  have been interpreted to protect other liberties that are not expressly  enumerated in any provision of the federal Constitution.
 These  unenumerated rights have been derived from Supreme Court precedent,  common law, history, and moral philosophy. Such rights "represent the  very essence of ordered liberty" and embody "principles of justice so  rooted in the traditions and conscience of our people as to be ranked  fundamental" (Palko v. Connecticut, 302 U.S. 319, 58 S. Ct. 149,  82 L. Ed. 288 [1937]). Since the mid-1960s, the Supreme Court has relied  on the concept of substantive due process to establish a general right  to privacy  that protects a woman's decision to terminate her pregnancy under  certain circumstances (Roe v. Wade, 410 U.S. 113, 93 S. Ct. 705,  35 L. Ed. 2d 147 [1973]).
 Equal Protection  Clause
 The Equal Protection Clause of the Fourteenth  Amendment has been another bountiful source of litigation. Ratified  during the aftermath of the Civil War along with the Thirteenth  Amendment, which outlawed slavery,  and the Fifteenth  Amendment, which protected the right to vote from discriminatory  infringement, the Fourteenth Amendment was designed to promote racial  equality.
 Until the middle of the twentieth century, the Supreme  Court interpreted the Equal Protection Clause to permit  state-implemented racial segregation. Then, in Brown v. Board of  Education, 347 U.S. 483, 74 S. Ct. 686, 98 L. Ed. 873 (1954), the  Supreme Court declared that the institution of segregation is inherently  unequal. Almost immediately after issuing the Brown decision,  the Court began striking down state-implemented racial segregation at a  host of public accommodations, including golf courses, beaches, and  public schools. Pursuant to the Fourteenth Amendment, Congress has  passed a number of civil  rights statutes that protect African Americans and other racial  groups from discrimination  in the private sector. Title VII of the Civil Rights Act of 1964 (Pub.  L. No. 88-352 [42 U.S.C.A. § 2000e et seq.]), for example, prohibits  racial discrimination in private employment.
 Persons of any race,  creed, or ethnic origin may bring a claim against a state government  for discriminating against them in violation of the Fourteenth  Amendment. The Supreme Court has also relied on the Equal Protection  Clause to invalidate state laws that discriminate on the basis of  gender, state residency, and national citizenship, among other  legislative classifications. In 1996 the U.S. Supreme Court struck down a  Colorado constitutional amendment that discriminated against  homosexuals, because it served no rational purpose (Romer v. Evans,  ___U.S.___, 116 S. Ct. 1620, 134 L. Ed. 2d 855 [1996]). The Civil  Rights Act of 1871 (17 Stat. 13 [42 U.S.C.A. § 1983]) authorizes  individuals to enforce the provisions of the Fourteenth Amendment  against state governments.
 Members of other minority groups, such  as persons who are elderly or disabled, are protected from  discrimination in both the public and private sectors by federal laws  that Congress has passed pursuant to its constitutionally delegated  powers. The Americans with Disabilities Act (Pub. L. No. 101336 [42  U.S.C.A. § 12111 et seq.]) and the Age Discrimination in Employment Act  (Pub. L. No. 90-202 [29 U.S.C.A. § 621 et seq.]) are two such laws.
 Supremacy Clause
 The Supremacy  Clause in Article VI makes the Constitution, federal laws, and  treaties "the supreme Law of the Land." Under this clause, state courts  may not interpret the Bill of Rights, or any other constitutional  provision, differently than does the Supreme Court. States may not  provide less protection for individual liberties than is provided under  the federal Constitution. However, state courts do retain the power to  afford their residents greater protection for certain liberties  established by their own state constitution than is afforded by the  federal Constitution (Prune Yard Shopping Center v. Robins, 447  U.S. 74, 100 S. Ct. 2035, 64 L. Ed. 2d 741 [1980]).
 Other Constitutional Provisions
 The  Nineteenth, Twenty-fourth, and Twenty-sixth Amendments provide that the  right to vote shall not be denied to a U.S. citizen on account of  gender, age (so long as the citizen is at least eighteen years old), or  the failure to pay a poll tax. The Twenty-first  Amendment repeals the Eighteenth  Amendment, which banned the manufacture, sale, and transportation  of intoxicating liquors, otherwise known as Prohibition. The Sixteenth  Amendment establishes the congressional power to lay and collect  income taxes.
 The Tenth and Eleventh Amendments attempt to  preserve the federalist system created by the Constitution, whereby by  the state and federal governments share sovereignty and jurisdiction.  Recognizing the threat presented by an omnipotent federal government,  the Tenth  Amendment reserves to the states all powers not delegated to the  federal government. The text of the Eleventh  Amendment restricts federal courts from hearing lawsuits against  state governments brought by the residents of another state or the  citizens of a foreign country. The Supreme Court has also interpreted  the Eleventh Amendment to restrict federal courts from hearing lawsuits  instituted by residents of the state being sued, and lawsuits initiated  by the governments of foreign countries.