Key Equal Protection Cases

Equal Protection and Civil Rights: A Comprehensive Overview Introduction The Equal Protection Clause of the Fourteenth Amendment—requiring that states cannot "deny to any person within its jurisdiction the equal protection of the laws"—has become the primary constitutional tool for combating discrimination. This clause has evolved dramatically from accepting "separate but equal" facilities to striking down laws that discriminate on the basis of race, sex, sexual orientation, and other classifications. Understanding this evolution requires examining the strategic litigation campaigns that dismantled segregation, the cases that expanded equal protection beyond racial issues, and the continuing debates about what equality actually requires. Part 1: The Path from "Separate but Equal" to Brown The Separate But Equal Doctrine (Background) Before the Supreme Court's landmark decision in Brown v. Board of Education, American law officially sanctioned racial segregation under the "separate but equal" doctrine established in Plessy v. Ferguson (1896). This doctrine allowed states to maintain racially segregated facilities as long as they were theoretically equal in quality. Of course, in practice, facilities designated for Black Americans were vastly inferior to those for White Americans. Key point: Understanding Plessy's separate but equal framework is essential context for appreciating how the cases discussed below systematically dismantled it. Missouri ex rel. Gaines v. Canada (1938): The First Crack CRITICALCOVEREDONEXAM In Gaines, the Court took its first major step away from Plessy. Missouri had no law school for Black students, so the state offered to pay Lloyd Gaines's tuition to attend law school in an adjacent state instead. The Supreme Court ruled that this violated the Equal Protection Clause. Why? A state cannot satisfy the equal protection requirement by sending a resident to another state for an education. The state must provide the educational facility within its own borders if it provides one to White students. What makes this case significant: The Court didn't overturn Plessy entirely, but it began requiring that "separate but equal" actually be substantially equal in practice. This opened the door to questioning whether segregation could ever truly provide equal protection. Shelley v. Kraemer (1948): State Action and Private Discrimination CRITICALCOVEREDONEXAM Shelley involves a crucial concept: the state action doctrine. The Fourteenth Amendment's Equal Protection Clause only restricts state action, not private discrimination. But what counts as "state action"? In Shelley, a Black family attempted to purchase a home in a neighborhood where the property had restrictive covenants—private agreements that barred sale to people of certain races. The covenant was not illegal, but when the family tried to buy the house, White neighbors went to court seeking to enforce the covenant. The Missouri state courts upheld the covenant. The Supreme Court held that judicial enforcement of a racially restrictive private covenant constitutes state action subject to the Equal Protection Clause. The state courts, by using their power to enforce the private agreement, transformed the private discrimination into unconstitutional state action. What makes this tricky: Students sometimes confuse this case with the principle that private discrimination alone is not unconstitutional. That remains true—a private homeowner can refuse to sell for any reason. But the moment a state court enforces a discriminatory private agreement, the state has acted, and the Fourteenth Amendment applies. Sweatt v. Painter and McLaurin v. Oklahoma State Regents (1950): Separate Cannot Be Equal CRITICALCOVEREDONEXAM These two companion cases finally made clear that "separate but equal" could not survive scrutiny in higher education. Sweatt v. Painter: Texas created a law school for Black students rather than admitting Heman Sweatt to the University of Texas Law School. On paper, the new school might have been equal in resources. But the Supreme Court looked at actual factors that made the facilities unequal: the new school had fewer faculty, a smaller library, limited access to legal networks and alumni, and limited reputation. These "intangible" factors—the factors that actually mattered for a legal education—made separation inherently unequal. McLaurin v. Oklahoma State Regents: Even after the state began admitting George McLaurin to the University of Oklahoma's graduate program, it segregated him within the program. He had to sit in a separate section of the classroom, eat at a separate table in the cafeteria, and use a separate reading room in the library. The Court held this too violated equal protection—segregation even within an integrated institution harmed his educational experience. The critical insight: The Court was beginning to recognize that segregation itself, even with equal physical facilities, causes inherent inequality by denying African Americans the full educational experience available to White students. The NAACP Legal Strategy: Building a Systematic Challenge NECESSARYBACKGROUNDKNOWLEDGE The cases above were not random litigation. Charles Hamilton Houston and Thurgood Marshall, brilliant NAACP lawyers, pursued a deliberate strategy to systematically dismantle segregation through the courts. Rather than attacking segregation head-on in cases involving primary schools (where the social and political backlash would be enormous), they began with higher education—law schools and graduate programs. Their strategy was elegant: by showing that "separate but equal" could not work even in higher education (where states made genuine efforts to create parallel institutions), they built a constitutional record establishing that segregation is inherently unequal. Each case built on the previous ones, strengthening the legal argument and public understanding that segregation was fundamentally incompatible with equal protection. This careful, incremental approach was designed to lead directly to the ultimate question: If segregation cannot be equal in law schools, how could it possibly be equal in elementary schools? Part 2: Brown v. Board of Education and Its Aftermath Brown v. Board of Education (1954): The Watershed Moment CRITICALCOVEREDONEXAM In the most significant civil rights decision in American history, the Supreme Court declared that segregated public schools are inherently unequal and therefore violate the Equal Protection Clause. Chief Justice Earl Warren wrote for a unanimous Court: "Separate educational facilities are inherently unequal. Therefore, segregation is a violation of the Equal Protection Clause." Why "inherently unequal"? The Court reasoned that segregation sends a message to Black children that they are inferior. Even if physical facilities and resources were identical (which they never were), the fact of segregation itself harms the educational experience and denies African American children equal protection. Notice that the Court was not merely applying mechanical equal protection analysis. It considered social science evidence about the psychological effects of segregation on children. This willingness to look beyond formal equality to actual equality effects became central to equal protection doctrine. What this changed: Brown overturned Plessy v. Ferguson (1896) entirely. The "separate but equal" doctrine was dead. No state could maintain racially segregated schools. Brown II (1955): "All Deliberate Speed" and Implementation Failure CRITICALCOVEREDONEXAM But there was a problem. The 1954 decision said segregation must end, but how? And who would enforce it? In Brown II, the Court delegated implementation to local school boards and federal district judges, ordering desegregation to proceed with "all deliberate speed." This phrase sounded reasonable in the abstract, but it became a vehicle for massive resistance and delay. What went wrong: "All deliberate speed" was extraordinarily vague. School boards used this language to justify years and years of delay. Some districts simply closed their public schools rather than desegregate. Federal judges, often from the South themselves, showed little appetite for forcing real integration. Integration proceeded at a snail's pace. This is a critical lesson: a constitutional right means little without effective enforcement. The gap between Brown's promise and its reality demonstrates why later courts would need to develop stronger remedies and more active judicial oversight. Green v. School Board of New Kent County (1968): Beyond "Neutral" Policies CRITICALCOVEREDONEXAM After more than a decade of minimal progress, the Supreme Court became more aggressive. In Green, the Court rejected "freedom-of-choice" plans as insufficient to dismantle segregation. New Kent County offered students the choice of which school to attend. While this sounds race-neutral, in practice Black students chose their traditional school (fearing hostility elsewhere), and White students avoided schools with Black students. The plan therefore perpetuated segregation without any official rule requiring it. The Court held that a school board must do more than adopt race-neutral policies—it must take affirmative steps to dismantle the effects of past segregation. The board could not simply stop actively segregating and call it compliant with Brown. It had an affirmative obligation to create a desegregated system. The key principle: Segregation caused by private choices made in the shadow of past discrimination still requires a remedy. The state cannot hide behind "choice" or "neutrality" when those choices are products of prior segregation. Swann v. Charlotte-Mecklenburg Board of Education (1971): Busing as a Remedy CRITICALCOVEREDONEXAM Building on Green, the Supreme Court in Swann approved busing as a legitimate remedy to achieve integration. The Court recognized that residential segregation meant that simply assigning students to neighborhood schools perpetuated segregation. Busing—transporting students across district lines to achieve racial balance—was therefore permissible when necessary to dismantle prior segregation. The Court also approved other remedies: magnet schools, redistricting school zones, faculty desegregation, and assignment of facilities so that schools had roughly equal resources. Important limitation: This authority to use busing and aggressive remedies applies when courts find a constitutional violation—typically intentional, deliberate segregation by the school district. The remedy must be tailored to remedying the specific constitutional violation. Why this was controversial: Busing became one of the most divisive civil rights issues of the 1970s. White parents objected to their children being bused to distant schools or to neighborhoods they viewed as dangerous. These objections were sometimes rooted in racism, but the busing requirement was nonetheless politically explosive and led to years of resistance, particularly in Boston. San Antonio Independent School District v. Rodriguez (1973): Equal Protection Does Not Require Equal School Funding CRITICALCOVEREDONEXAM This case is crucial because it shows the limits of equal protection doctrine in the education context. Texas funded schools through local property taxes, which meant wealthy districts had far more funding than poor districts. Families in poor districts argued this violated equal protection—funding was radically unequal based on zip code. The Supreme Court disagreed. The Court held that while education is important, it is not a "fundamental right" for purposes of equal protection analysis. Therefore, the state need only show that its funding system has a rational basis—a legitimate governmental interest and a rational connection to that interest. The Court found that relying on local property taxes was rational because it promoted local control of schools. Why this matters for your understanding: This case shows that equal protection doctrine distinguishes between: Fundamental rights (like voting, or the right to marry): These trigger strict scrutiny, and laws that burden them must be narrowly tailored to serve a compelling government interest. Non-fundamental interests (like education): These only require rational basis review, a much easier standard to satisfy. The Rodriguez holding remains controversial. Many scholars argue that if segregation violates equal protection based partly on education's importance, then gross funding inequality should too. But the Court has never reversed Rodriguez. Milliken v. Bradley (1974): The Limits of Desegregation Remedies CRITICALCOVEREDONEXAM Even as courts worked to desegregate schools, they confronted the problem of residential segregation. Many metropolitan areas had majority-White suburban districts and majority-Black urban districts. Desegregating within a single district might be impossible if that district is 90% Black. In Milliken, Detroit schools were highly segregated. Could courts order desegregation across district lines, including suburban districts? The Supreme Court said no. The Court held that courts cannot impose interdistrict desegregation remedies without evidence of intentional segregation across district lines. If each suburban district had operated its schools without intentional discrimination, they could not be forced to participate in desegregation. The practical consequence: This decision severely limited desegregation remedies in metropolitan areas. It created what some call "suburban sanctuaries" where districts could maintain racial separation without court-ordered integration. A critical tension: Milliken applies the state action doctrine rigorously—only if a district itself intentionally segregated can it be ordered to integrate. But this means the effects of systemic segregation (which occurs across district lines) cannot be remedied through integration itself. Milliken arguably made desegregation impossible in many regions. Parents Involved in Community Schools v. Seattle School District No. 1 (2007): The Limits of Integration Measures CRITICALCOVEREDONEXAM Decades after Brown, school districts that had never been segregated by law—they operated on a race-neutral basis from the start—nonetheless tried to use race-conscious assignment policies to promote integration. Seattle and other districts assigned students to schools partly based on race to achieve racial balance and promote integration. But the Supreme Court, in an opinion by Chief Justice John Roberts, held that if racial imbalance arises from private choices rather than state action, the state has limited authority to impose race-conscious integration measures. The Court's reasoning: schools are not segregated because the district itself intentionally segregated them. Instead, segregation results from where people choose to live and which schools they choose to attend. Therefore, the district cannot use race-conscious measures to overcome that segregation. Why this matters: This case shows the modern limits of integration doctrine. Even a well-intentioned effort to promote integration through race-conscious means is now highly suspect. Courts will ask whether the racial imbalance resulted from the government's own discrimination—if not, race-conscious remedies may be unconstitutional. <extrainfo> A note on standing and racial classifications: Parents Involved also reflects the Court's modern skepticism toward race-conscious government action of any kind, even when designed to remedy segregation or promote integration. The Court has become increasingly hostile to affirmative action and other race-conscious policies, viewing racial classifications with extreme skepticism regardless of purpose. </extrainfo> Part 3: Voting Rights and the Fundamental Right to Vote Nixon v. Herndon (1927): Race-Based Voting Discrimination CRITICALCOVEREDONEXAM Even before the civil rights era's great victories, the Court recognized that voting discrimination based on race violates equal protection. In Nixon v. Herndon, the Supreme Court held that the Fourteenth Amendment prohibited denying the vote on the basis of race. Texas had a law explicitly excluding Black voters from primary elections. The Court swiftly struck it down as violating the equal protection clause. Though this seems obvious today, it was a crucial early recognition that racial classifications in voting violate the Constitution. Baker v. Carr (1962): Reapportionment and Equal Protection CRITICALCOVEREDONEXAM Baker v. Carr addressed extreme malapportionment of state legislative districts. Some districts had vastly more voters than others, meaning votes were worth different amounts depending on where voters lived. Tennessee had not redrawn district lines for 60 years, even as the state's population shifted dramatically. Urban voters were severely underrepresented because district lines were frozen in place. The Court held that extreme malapportionment violates the Equal Protection Clause. Each person's vote must count equally. This launched the "one person, one vote" principle—a core application of equal protection to voting. What makes this case significant: It established that voting is a context where equal protection is absolutely central. Diluting some people's votes by giving them fewer representatives per capita violates equal protection even when the malapportionment is merely negligent, not intentional discrimination. Section Two of the Fourteenth Amendment and Representation Penalties NECESSARYFORREADINGQUESTIONS While we focus on the Equal Protection Clause, Section Two of the Fourteenth Amendment contains an important related provision: any state that abridges voting rights may have its representation in Congress reduced. This provision has never been enforced in practice—Congress has never reduced any state's representation. But it reflects the amendment's concern with voting discrimination and shows that the amendment writer contemplated that states might discriminate in voting. The Fundamental Right to Vote and Strict Scrutiny CRITICALCOVEREDONEXAM This is a crucial doctrinal point: the Court treats voting as a fundamental right. When a law or policy affects voting, courts apply strict scrutiny—the most demanding level of constitutional review. What does this mean practically? Any classification affecting voting must serve a compelling governmental interest The means must be narrowly tailored to achieve that interest It's very hard for a voting regulation to survive strict scrutiny Why voting gets special treatment: The Court recognizes that voting is the mechanism by which people protect all other rights through the democratic process. If voting rights are diluted or restricted, people lose their ability to protect themselves through politics. Therefore, voting demands special constitutional protection. Important contrast with other rights: Recall from the Rodriguez case that education is not a fundamental right for equal protection purposes, so it gets only rational basis review. But voting is fundamental, so it gets strict scrutiny. This makes a huge difference in practice. Bush v. Gore (2000): Ballot Counting Standards and Equal Protection CRITICALCOVEREDONEXAM In the 2000 presidential election, Florida's results were so close that they triggered an automatic recount. But different counties used different standards for determining voter intent when ballots were unclear—some counted dimpled chads, others required fully punched chads. The Supreme Court held that using different standards for counting ballots across the state violated the Equal Protection Clause. All voters must have their votes counted under the same rules. The Court reasoned: different counting standards meant that a ballot counted as a valid vote in one county might be invalid in another. This arbitrary difference in treatment violated equal protection—voters' votes were not being treated equally. Why this case matters: It reinforces that equal protection applies to voting in very concrete ways. Even administratively-created differences in how votes are counted can violate the clause. The decision was also controversial because many viewed it as the Court reaching out to determine the presidency—but that controversy is separate from the equal protection analysis itself. <extrainfo> Note on controversy: Bush v. Gore generated enormous criticism. Dissenters argued that federal courts had no business intervening in state election procedures and that the equal protection rationale was inconsistent with the Court's other voting jurisprudence. Regardless of one's views on the decision, it's clear that the Court did apply equal protection doctrine to strike down the different ballot-counting standards. </extrainfo> Part 4: Sex Discrimination and Other Classifications Reed v. Reed (1971): Sex Discrimination Prohibited CRITICALCOVEREDONEXAM For decades, the Court never applied equal protection to strike down sex-based classifications. The Court assumed that sex classifications were fundamentally different from race classifications and could be upheld if they had a rational basis. Reed v. Reed changed that. An Idaho law automatically preferred males to females as estate administrators. The Court held that this violated equal protection. But notice the Court's language: the law must have a rational basis and it lacked even that minimal justification. The Court did not declare that sex is a suspect classification requiring strict scrutiny (like race). Instead, it applied something more than rational basis review but less than strict scrutiny—this became known as "intermediate scrutiny." What's intermediate scrutiny? For sex classifications, the law must serve important governmental objectives and must be substantially related to achieving those objectives. This is more demanding than rational basis (where almost any legitimate purpose suffices) but less demanding than strict scrutiny (where only compelling interests suffice). Why this doctrinal point matters: Sex classifications get intermediate scrutiny; race classifications get strict scrutiny. This means race discrimination is viewed as more suspicious and harder to justify than sex discrimination. Over time, sexual orientation discrimination has also been treated with skepticism, as we'll see below. City of Cleburne v. Cleburne Living Center (1985): Disability and Higher Scrutiny CRITICALCOVEREDONEXAM A city denied a permit for a group home for people with developmental disabilities. The Court had to decide what level of scrutiny applies to disability classifications. The Court declined to treat developmentally disabled persons as a suspect class requiring strict scrutiny. However, the Court applied a higher level of scrutiny than ordinary rational-basis review—something more like a heightened rational basis test. Under this approach, the city's stated concerns (traffic, parking, crime risk) did not actually justify excluding the facility. The city was engaging in irrational prejudice against people with disabilities. What's noteworthy: The Court created yet another middle-ground level of scrutiny for disability. The doctrinal landscape now has: Strict scrutiny: race, national origin, sometimes alienage Intermediate scrutiny: sex, sexual orientation (see below) Heightened rational basis: disability (also sometimes applied to other classifications) Rational basis: most other classifications This shows how equal protection doctrine has become more nuanced. Different classifications get different levels of protection, and courts sometimes apply a stricter-than-normal version of rational basis review. Romer v. Evans (1996): Sexual Orientation Discrimination CRITICALCOVEREDONEXAM Colorado voters approved an amendment to the state constitution prohibiting the state or local governments from granting minority status, legal protections, or antidiscrimination status based on sexual orientation. The practical effect: gays and lesbians lost (or would lose) antidiscrimination protections that other groups had. The Supreme Court struck down the amendment. The Court applied a level of scrutiny beyond typical rational-basis review—again, something more searching than ordinary rational basis but not quite strict scrutiny. The Court reasoned that the amendment had no rational basis. Instead, it represented "animus"—hostility toward a group for its own sake. A law motivated purely by hostility toward a group cannot be constitutional, even under rational basis review. Why this matters: Romer established that laws targeting gays and lesbians would receive meaningful scrutiny. While the Court stopped short of saying sexual orientation is a suspect classification, it made clear that open hostility toward LGBTQ people would not survive equal protection review. Lawrence v. Texas (2003): Sodomy Laws and Due Process CRITICALCOVEREDONEXAM Texas criminalized sodomy—specifically consensual same-sex sodomy (heterosexual sodomy was not illegal). The Supreme Court invalidated the law, but on substantive due process grounds, not equal protection. The Court emphasized liberty: the government cannot criminalize private, consensual sexual conduct. This is a due process right rooted in personal liberty and privacy, not equal protection. However, in a concurring opinion, Justice O'Connor argued that the law also violated equal protection because it was not even rationally related to a legitimate governmental purpose. Texas could not justify criminalizing same-sex sodomy while permitting heterosexual sodomy. Why both theories matter: The majority's due process approach protects a broader principle—that government cannot criminalize private consensual conduct, period. The equal protection approach (on which only the concurrence relied) focuses on the discrimination between heterosexual and homosexual sodomy. Both approaches lead to the same result: the Texas law is unconstitutional. United States v. Windsor (2013): The Defense of Marriage Act CRITICALCOVEREDONEXAM The federal Defense of Marriage Act defined marriage for federal purposes as between a man and a woman. Edith Windsor and Thea Spyer had been married in New York (where same-sex marriage was legal), but when Spyer died, Windsor had to pay federal estate taxes because the federal government did not recognize their marriage. Heterosexual married couples received a spousal exemption from these taxes. The Court struck down the Defense of Marriage Act, employing principles akin to equal-protection analysis (though framed in terms of due process). The Court held that denying federal benefits to same-sex married couples had no rational basis—Congress was motivated by a desire to disparage and injure a group of people. This language echoes Romer: laws rooted in animus against LGBTQ people will not survive review. The Defense of Marriage Act was not a valid exercise of federal power; it was discrimination. What changed: After Windsor, the federal government had to recognize same-sex marriages for purposes of tax law, Social Security, immigration, and virtually every federal benefit. This was a massive shift in how federal law treated same-sex couples. Obergefell v. Hodges (2015): Same-Sex Marriage as a Fundamental Right CRITICALCOVEREDONEXAM Finally, in Obergefell v. Hodges, the Supreme Court held that same-sex couples have a constitutional right to marry. The Court applied both the Due Process Clause and the Equal Protection Clause of the Fourteenth Amendment. Under the Due Process Clause, the Court found that marriage is a fundamental right—people have a liberty interest in choosing whom to marry. This right cannot be limited to heterosexual couples; same-sex couples have the same fundamental right to marry. Under the Equal Protection Clause, the Court reasoned that denying same-sex couples the right to marry denies them equal protection. States cannot treat similarly situated people—people seeking to marry—differently based on sexual orientation. Why both clauses apply: Due process focuses on liberty (the right to marry whom you choose). Equal protection focuses on equal treatment (you cannot deny this liberty to one group while granting it to another). Both principles converge: same-sex couples must be allowed to marry on the same terms as opposite-sex couples. The scope of the holding: This was the clearest statement yet that sexual orientation classifications demand serious constitutional scrutiny. The Court did not explicitly declare sexual orientation a suspect classification requiring strict scrutiny, but Obergefell comes very close, treating sexual orientation classifications as requiring a very demanding level of justification. Why this matters for doctrine: Obergefell suggests that the modern Court views classifications based on sexual orientation with high suspicion—potentially approaching strict scrutiny. Combined with Windsor, Lawrence, and Romer, it's clear that laws discriminating against LGBTQ people face substantial constitutional obstacles. Summary: The Evolution of Equal Protection Doctrine Over the past 70+ years, equal protection doctrine has expanded dramatically: Race and segregation: The Court moved from accepting "separate but equal" (Plessy) to recognizing segregation as inherently unequal (Brown) to requiring affirmative integration remedies (Green, Swann). Voting rights: The Court recognized voting as a fundamental right deserving strict scrutiny and struck down explicit race discrimination (Nixon v. Herndon), malapportionment (Baker v. Carr), and arbitrary ballot-counting standards (Bush v. Gore). Sex discrimination: The Court extended equal protection to prohibit sex-based classifications, applying intermediate scrutiny rather than mere rational basis (Reed v. Reed). Sexual orientation: The Court has increasingly scrutinized laws discriminating against LGBTQ people, applying stricter standards than normal rational basis review (Romer, Lawrence, Windsor, Obergefell). Other classifications: The Court applies various levels of scrutiny depending on the classification, showing that equal protection doctrine is flexible but demanding. The through-line is clear: the Equal Protection Clause has become an increasingly powerful tool for challenging laws that discriminate or treat people unequally based on immutable characteristics or fundamental rights.