AP U.S. Government Unit 3 (Civil Liberties & Civil Rights): Learning Civil Rights Through Equal Protection, Movements, and Policy

Equal Protection Clause (Fourteenth Amendment)

Constitutional rule (ratified 1868) requiring state governments to provide “equal protection of the laws,” meaning they cannot treat people differently without a constitutionally valid reason.

Fourteenth Amendment

Reconstruction Amendment (ratified 1868) that, among other things, contains the Equal Protection Clause and the Due Process Clause and is central to modern civil rights litigation involving state action.

Civil rights

Protections against discriminatory treatment, such as equal access to voting, education, and employment opportunities when the government is involved.

Civil liberties

Protections from government action, such as freedom of speech and protection against unreasonable searches and seizures.

Due Process Clause (Fourteenth Amendment)

Fourteenth Amendment provision often used to apply fundamental rights and procedural protections to the states; commonly associated with civil liberties.

Judicial review

Power of courts to evaluate whether laws or government policies (including classifications) are constitutional, including under the Equal Protection Clause.

Classification (in equal protection)

A legal line a government draws between groups (e.g., by race, sex, age) that can trigger equal protection analysis.

Levels of scrutiny

Standards the Supreme Court uses to judge whether a government classification is constitutional (strict scrutiny, intermediate scrutiny, rational basis).

Strict scrutiny

Most demanding equal protection test, typically for race/national origin classifications or burdens on fundamental rights; requires a compelling governmental interest and narrow tailoring (often least restrictive means).

Compelling governmental interest

Exceptionally strong government objective required for a policy to survive strict scrutiny.

Narrowly tailored

Requirement under strict scrutiny that a policy be carefully designed to achieve the compelling interest without unnecessary overreach (often framed as least restrictive means).

Intermediate scrutiny

Equal protection test commonly used for sex-based (gender) classifications; requires an important governmental interest and a substantial relationship between the policy and that interest.

Important governmental interest

Government objective required for a law to survive intermediate scrutiny.

Substantially related

Intermediate-scrutiny requirement that the government’s classification meaningfully advances (and fits) the important governmental interest; more demanding than “reasonable.”

Rational basis review

Most deferential equal protection test, often for age or economic status classifications; requires a legitimate governmental interest and that the policy is rationally related to achieving it.

Legitimate governmental interest

Government objective sufficient under rational basis review if the policy is rationally connected to it and not completely arbitrary.

Brown v. Board of Education (1954)

Supreme Court case holding that racial segregation in public schools violates the Equal Protection Clause, undermining the constitutional foundation of “separate but equal.”

Craig v. Boren (1976)

Supreme Court case that applied and helped formalize intermediate scrutiny for sex-based classifications, rejecting reliance on broad gender stereotypes.

Intentional discrimination (equal protection)

A requirement in many equal protection claims: plaintiffs often must show discriminatory purpose, not merely unequal outcomes.

Disparate impact

A policy’s unequal effects on different groups; by itself, it often does not prove an equal protection violation without evidence of discriminatory intent.

Social movement

Organized citizen effort to change public policy and political culture; can shape elections, legislation, and the kinds of cases that reach courts.

Test case

A strategically chosen lawsuit designed to set legal precedent and advance a movement’s goals through court decisions.

Coalition-building

Movement strategy of forming alliances to increase electoral and legislative support for policy change.

Affirmative action

Policies that consider race, ethnicity, sex, or other characteristics to increase opportunities for groups that have faced discrimination; often triggers strict scrutiny when race classifications are used.

Quota (affirmative action)

A rigid policy that reserves a fixed number or percentage of seats/jobs for a group; often viewed as not narrowly tailored under strict scrutiny.