Shaw v. Reno: Racial Gerrymandering and Strict Scrutiny

Shaw v. Reno, 509 U.S. 630 (1993), is the Supreme Court decision that first recognized racial gerrymandering as a distinct claim under the Equal Protection Clause of the Fourteenth Amendment. In a 5–4 opinion by Justice Sandra Day O’Connor, the Court held that voters can challenge a redistricting map when its district lines are so irregular they can only be explained by race. The ruling did not strike down North Carolina’s map. It sent the case back for trial and created the framework that has governed every racial gerrymandering case since, up through the Court’s 2026 decision in Louisiana v. Callais.

The North Carolina Map That Triggered the Case

After the 1990 census, North Carolina gained a twelfth congressional seat. Forty of the state’s 100 counties were covered by Section 5 of the Voting Rights Act, so any new plan needed federal preclearance. The legislature’s first map contained one majority-Black district. The U.S. Attorney General objected, saying the state could have drawn a second majority-minority district with boundaries “no more irregular than those found elsewhere in the proposed plan.”¹

The General Assembly then drew a revised map with two majority-Black districts. The second, District 12, ran roughly 160 miles along the I-85 corridor and was, for much of its length, no wider than the interstate itself. The opinion described it as winding “in snakelike fashion through tobacco country, financial centers, and manufacturing areas” to capture Black neighborhoods along the way.¹ Five Durham County residents sued, arguing the map was an unconstitutional racial gerrymander.²

The Voting Rights Act context is what made the case hard. Federal law pressured North Carolina to create majority-minority districts. The Constitution limits how far a state can go in using race to draw them. Shaw v. Reno forced the Court to sort out where one ends and the other begins.

What the Court Actually Held

A common misreading of Shaw is that the Supreme Court struck down District 12. It did not. The federal district court had thrown the residents’ lawsuit out entirely. The Supreme Court reversed that dismissal and sent the case back for trial. The holding was narrow: the plaintiffs “stated a claim sufficient to defeat the state appellees’ motion to dismiss.”²

The Court’s actual formulation was that a plaintiff “may state a claim by alleging that the legislation, though race neutral on its face, rationally cannot be understood as anything other than an effort to separate voters into different districts on the basis of race, and that the separation lacks sufficient justification.”² Before Shaw, no court had recognized that voters could challenge a redistricting map purely because race drove the line-drawing. Shaw created that cause of action.

The Court’s theory rested on treating racial classifications in redistricting the way it treats them elsewhere: even when the government says it is helping a minority group, sorting citizens by race demands constitutional justification. The Fourteenth Amendment provides that no state shall “deny to any person within its jurisdiction the equal protection of the laws,”³ and the majority read that guarantee to reach state maps that assign voters to districts by race.

The sequel arrived three years later. In Shaw v. Hunt, 517 U.S. 899 (1996), the Court reviewed the case on the merits after remand and struck down District 12, finding the plan was not narrowly tailored because the district’s minority population was not geographically compact enough to have triggered Section 2 liability in the first place.⁴

How Courts Identify a Racial Gerrymander

The Bizarre Shape Standard

Shaw tied its analysis to how the districts looked. When a boundary is “so bizarre on [its] face” that it is “unexplainable on grounds other than race,” the plan demands close judicial scrutiny.² Traditional redistricting norms favor compactness, contiguity, and respect for existing political boundaries. A district that ignores all of those to string together far-apart pockets of one racial group is, on its face, evidence that race drove the mapmaking. District 12 was the textbook example. No geographic, economic, or community-of-interest logic explained a 160-mile ribbon the width of an interstate.

The Predominant Factor Test

Two years later, Miller v. Johnson, 515 U.S. 900 (1995), refined the trigger. A plaintiff no longer needs a strange-looking district. The test is whether “race was the predominant factor motivating the legislature’s decision to place a significant number of voters within or without a district.” Proof can come from demographic data, legislative testimony, or other direct evidence. The plaintiff must show the legislature “subordinated traditional race-neutral districting principles, including but not limited to compactness, contiguity, [and] respect for political subdivisions” to racial considerations.⁵

The practical consequence is that a compact, normal-looking majority-minority district can still fall if evidence shows race was the dominant reason for its shape. And an irregular district can survive if partisanship or geography, rather than race, best explains the boundaries. Most modern redistricting litigation lives in this gap, because racial data and partisan data often overlap.

Strict Scrutiny Once Race Predominates

When race is the predominant factor, the plan triggers strict scrutiny, the most demanding standard in constitutional law. The state has to prove two things: that the racial classification serves a compelling governmental interest, and that the plan is narrowly tailored to achieve it.⁶

For decades, courts assumed without deciding that compliance with the Voting Rights Act could qualify as a compelling interest. The Court finally resolved that question in Louisiana v. Callais (2026). Compliance with Section 2 can be a compelling interest, but only under a narrow reading: the state must show a “strong inference that the State intentionally drew its districts to afford minority voters less opportunity because of their race” before Section 2 liability applies. The Court recognized only one other compelling interest in this context, remedying specific, identified instances of past discrimination.⁷

Narrow tailoring is not a formality. If the state could have reached its goal with a less race-driven map, the plan fails. In Shaw v. Hunt, District 12 failed this prong because the minority population it grouped was not geographically compact, meaning no Section 2 violation could have existed to justify the race-based design.⁴ Once a challenger shows race predominated, the burden shifts entirely to the state.

The Constitutional Harm the Court Identified

Alongside the strict scrutiny framework, the Shaw opinion described a distinct injury caused by racial gerrymandering. O’Connor wrote that a district grouping people of the same race who are “otherwise widely separated by geographical and political boundaries” and who “may have little in common with one another but the color of their skin, bears an uncomfortable resemblance to political apartheid.”¹

The core problem, as the majority saw it, was that racial gerrymandering “reinforces the perception that members of the same racial group—regardless of their age, education, economic status, or the community in which they live—think alike, share the same political interests, and will prefer the same candidates at the polls.”¹ The Court called this an impermissible racial stereotype and treated it as constitutional harm in its own right, not just as evidence of some other injury. That reasoning has since appeared in cases about jury selection and government contracting whenever courts assess whether a race-based classification causes dignitary harm.

The Dissent

Four justices disagreed, and the arguments they raised still surface in modern redistricting fights. Justice White, joined by Justices Blackmun and Stevens, said the appellants had suffered no real injury. He read the facts as materially similar to United Jewish Organizations of Williamsburgh v. Carey (1977), where the Court had upheld a race-conscious plan. White warned that letting courts intervene whenever race played a role would invite “constant and unmanageable intrusion” into the legislative process.²

Justice Stevens took a different angle. If legislatures can draw districts to accommodate rural voters, union members, or ethnic communities, he argued, the same should be true for the racial minority group “whose history in the United States gave birth to the Equal Protection Clause.”² For Stevens, the constitutional line was not race-consciousness itself but whether the majority used redistricting to entrench its own power at a minority’s expense.

White also attacked the majority’s focus on shape, writing that “given two districts drawn on similar, race-based grounds, the one does not become more injurious than the other simply by virtue of being snakelike.”² The majority never fully answered that objection, which is part of why Miller v. Johnson later moved the test off of shape and onto the predominant-factor inquiry.

Who Can Bring a Claim

Not every voter has standing to challenge a racial gerrymander. In United States v. Hays, 515 U.S. 737 (1995), the Court held that a plaintiff must show a personal, race-based injury rather than a generalized grievance. In practice, that usually means living in the challenged district. The Hays plaintiffs lived in a different district from the one they were attacking, and the Court found they lacked standing because the racial classification had not been applied to them.⁸ The Shaw plaintiffs themselves lived in Durham County, with two assigned to District 12 and three to neighboring District 2, so they could show they had been personally sorted by the map.

What Came After Shaw

Shaw opened the door, and the cases that followed built out the framework. Miller v. Johnson (1995) replaced the bizarre-shape trigger with the predominant-factor test. Shaw v. Hunt (1996) struck down District 12 on the merits. Hunt v. Cromartie later accepted North Carolina’s argument that partisanship rather than race explained a redrawn version of the district.

In 2013, Shelby County v. Holder dismantled the preclearance regime that had pressured North Carolina to draw a second majority-Black district in the first place. The Court struck down the coverage formula that determined which states needed federal approval for voting changes, making Section 5 preclearance inoperative.⁹ Section 2 claims remain fully available.

Cooper v. Harris (2017) brought the framework back to North Carolina. The Court struck down two congressional districts drawn after the 2010 census, finding the state had leaned too heavily on race and that its Voting Rights Act justification did not survive strict scrutiny, particularly because minority-preferred candidates had already been winning consistently in the areas the state claimed needed a higher Black population.

Louisiana v. Callais (2026) resolved a question the Court had ducked for more than 30 years: whether compliance with Section 2 qualifies as a compelling interest under strict scrutiny. The answer is yes, but only when Section 2 is “properly construed” to require a showing that the state intentionally drew districts to give minority voters less opportunity because of their race.⁷ That narrows the circumstances under which a state can defend a race-based map by pointing to the Voting Rights Act. A blanket “we were complying with Section 2” defense is no longer enough; the state has to show the specific conditions that would have created real Section 2 liability.

1
Cornell Law Institute. Shaw v. Reno
2
Justia U.S. Supreme Court Center. Shaw v. Reno
3
Constitution Annotated. Fourteenth Amendment Section 1
4
FindLaw. Shaw v. Hunt, Governor of North Carolina
5
Justia U.S. Supreme Court Center. Miller v. Johnson
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Constitution Annotated. Racial Vote Dilution and Racial Gerrymandering
7
Supreme Court of the United States. Louisiana v. Callais
8
Justia U.S. Supreme Court Center. United States v. Hays
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Justia U.S. Supreme Court Center. Shelby County v. Holder