Constitutional Law: The Commerce Clause and Equal Protection

Vocabulary practice flashcards covering the historical development and legal doctrines of the Commerce Clause, civil rights legislation, standards of review, and equal protection under the U.S. Constitution.

Commerce Clause

The constitutional provision in Article I, Section 8, Clause 3 granting Congress the power to regulate commerce with foreign nations, among the several states, and with Indian tribes.

Gibbons v. Ogden (1824)

A landmark Supreme Court decision establishing that the Commerce Clause, combined with the Supremacy Clause, gives Congress ultimate authority over interstate commerce, including navigation on interstate waterways.

Selective Exclusiveness Test

A constitutional test established in Cooley v. The Board of Wardens of the Port of Philadelphia holding that states may regulate aspects of interstate commerce in the absence of federal legislation.

Direct-Indirect Effects Test

A standard formulated in United States v. E.C. Knight establishing that activities directly affecting commerce fall under federal regulation, whereas activities with indirect effects, such as manufacturing and production, are beyond federal control.

Current of Commerce

A doctrine established in Swift and Co. v. United States permitting Congress to regulate local commercial activities if they constitute part of a larger, continuous stream of interstate commerce.

Aggregation Principle

A legal principle from Wickard v. Filburn holding that Congress may regulate purely local activities if their cumulative, aggregate economic effect on interstate commerce is substantial.

Police Powers

The sovereign authority traditionally reserved to state governments to legislate and act regarding society's health, safety, morals, and general welfare.

Public Accommodations

Under Title II of the Civil Rights Act of 1964, four categories of businesses barred from discrimination or segregation: inns, hotels, and motels; restaurants and cafeterias; motion picture houses; and establishments physically located within them.

Heart of Atlanta Motel, Inc. v. United States (1964)

A Supreme Court ruling affirming that Congress can use the Commerce Clause to ban racial discrimination by public businesses because discrimination disrupts and obstructs interstate commerce.

Katzenbach v. McClung (1964)

A Supreme Court decision holding that a local restaurant (Ollie's Barbeque) purchasing over $70,000 worth of food moved in interstate commerce was subject to federal regulation under the Civil Rights Act.

United States v. Lopez (1995)

A Supreme Court ruling declaring the Gun-Free School Zones Act unconstitutional because possessing a firearm in a school zone is a non-economic activity with too tenuous a connection to interstate commerce.

Commerce Clause Limitation

The constitutional boundary established in United States v. Lopez that excludes non-economic activities from congressional commerce power and reserves them to state police powers.

Three-fifths Compromise

A clause in Article I, Section 2 of the original U.S. Constitution specifying that enslaved persons were counted as three-fifths of a person for legislative representation in the House and direct taxation.

1808 Compromise

The provision in Article I, Section 9 of the Constitution prohibiting Congress from banning the importation of enslaved persons prior to the year 1808.

Fugitive Slave Clause

The constitutional clause nationalizing slave property by compelling free states to recognize and enforce the return of escaped enslaved individuals to their enslavers.

Bailey v. Cromwell (1841)

An Illinois Supreme Court case argued by Abraham Lincoln ruling that under the Northwest Ordinance of 1787, all people in Illinois are legally free and the sale of a free person is void, emancipating Nance Legins-Costley.

Dred Scott v. Sandford (1857)

A Supreme Court decision written by Chief Justice Roger Taney ruling that Black people could not be citizens, and that Congress lacked authority under the Fifth Amendment Due Process Clause to ban slavery in territories.

Black Codes

Post-Civil War Southern state laws designed to restrict Black Americans from carrying firearms, utilizing courts, and freely choosing employment, while establishing racial segregation in public facilities.

The Civil Rights Cases (1883)

A landmark decision ruling the Civil Rights Act of 1875 unconstitutional on the grounds that the Fourteenth Amendment prohibits state discrimination, but does not extend to private individuals.

Separate-But-Equal Doctrine

The legal doctrine established in Plessy v. Ferguson (1896) allowing state-mandated racial segregation in public facilities so long as the separate facilities provided were equal in nature.

Rational Basis Test

The most lenient standard of judicial review under the Equal Protection Clause, requiring the government to show that a classification is rationally related to a legitimate public purpose.

Sweatt v. Painter (1950)

A Supreme Court decision requiring the University of Texas Law School to admit Heman Marian Sweatt because the state's newly established separate Black law school lacked substantial equality in educational opportunities and intangible prestige.

Brown v. Board of Education of Topeka (1954)

A unanimous Supreme Court ruling authored by Chief Justice Earl Warren declaring that racially segregated public schools violate the Equal Protection Clause because separate educational facilities are inherently unequal.

Racial Integrity Act

A 1924 Virginia statute that prohibited interracial marriage, barred residents from marrying out-of-state to evade the law, and imposed a felony penalty of 1 to 5 years in prison.

Loving v. Virginia (1967)

A landmark Supreme Court case ruling that state laws banning interracial marriage violate the Equal Protection and Due Process Clauses of the Fourteenth Amendment, recognizing marriage as an inherent civil right.

Voting Rights Act of 1965

A federal law prohibiting states from using literacy tests, educational knowledge tests, or moral character requirements to qualify voters, with subsequent amendments protecting language-minority groups.

Shelley v. Kraemer (1948)

A Supreme Court decision holding that racially restrictive real estate covenants between private property owners cannot be enforced by state courts, as judicial enforcement constitutes state action violating the Fourteenth Amendment.

Strict Scrutiny

The most demanding standard of judicial review, applied to laws burdening fundamental rights or suspect classifications, requiring the government to prove a compelling state interest with no less restrictive alternative.

Suspect Classifications

Categories of government discrimination—specifically race, national origin, religion, and state-level alienage—that automatically trigger strict scrutiny under the Equal Protection Clause.

Quasi-suspect Classifications

Legal categories including gender and illegitimacy of birth that are reviewed under intermediate scrutiny rather than rational basis or strict scrutiny.

Students for Fair Admissions v. Harvard (2023)

A Supreme Court decision ruling that university admissions programs cannot use race as a factor or utilize racial quotas and checkboxes, holding that eliminating discrimination means eliminating all of it.

Intermediate Scrutiny

A constitutional standard of review formulated in Craig v. Boren for gender-based classifications, requiring the law to be substantially related to achieving an important government interest.

Heightened Intermediate Scrutiny

The standard articulated in United States v. Virginia (1996) requiring the state to present an exceedingly persuasive justification for maintaining sex-exclusive admissions at the Virginia Military Institute.

Romer v. Evans (1996)

A Supreme Court ruling striking down Colorado's Amendment 2 because it singled out homosexual and bisexual citizens to deny them the ability to seek anti-discrimination legal protections, violating the Equal Protection Clause.

Defense of Marriage Act (DOMA)

A 1996 federal statute that defined marriage as exclusively between one man and one woman for federal purposes and permitted individual states to refuse recognition to out-of-state same-sex marriages.

United States v. Windsor (2013)

A Supreme Court ruling striking down Section 3 of DOMA under the Fifth Amendment's Due Process and Equal Protection principles for improperly demeaning and financially burdening lawfully married same-sex couples.

Obergefell v. Hodges (2015)

A landmark Supreme Court decision holding that the Fourteenth Amendment guarantees same-sex couples the fundamental right to marry, requiring all states to issue marriage licenses and recognize lawful out-of-state same-sex marriages.