Supreme Court narrows Voting Rights Act in Louisiana map ruling

The 6-3 decision in Louisiana v. Callais leaves Section 2 on the books but raises the bar for plaintiffs challenging redistricting maps as racially discriminatory.

WASHINGTON - The Supreme Court ruled 6-3 on April 29 that Louisiana's SB8 congressional map was an unconstitutional racial gerrymander, holding that Section 2 of the Voting Rights Act did not require the state to draw a second majority-Black district. The decision in Louisiana v. Callais affirms a three-judge district court ruling and rewrites the proof framework that has governed vote-dilution claims since 1986.

Section 2 remains in the U.S. Code. What changed is how plaintiffs prove a violation. Under the new framework, illustrative maps offered by challengers cannot use race as a districting criterion, must satisfy traditional state districting goals, and racial-bloc voting evidence must be separated from ordinary partisan preference. Civil-rights litigators say the combined effect makes Section 2 redistricting suits significantly harder to win. The ruling lands months before midterm filing deadlines in states with pending Section 2 cases, putting congressional maps from Alabama to South Carolina back in play.

The Story So Far

Congress enacted the Voting Rights Act in 1965 after decades of state-level resistance to the Fifteenth Amendment. Section 2, codified at 52 U.S.C. Section 10301, prohibits any voting standard or practice that results in denial or abridgment of the right to vote on account of race. The statute's text says a violation is established when, based on the totality of circumstances, the political processes leading to nomination or election are not equally open to participation by members of a protected class.

The Supreme Court translated that totality test into a workable framework in Thornburg v. Gingles (1986). Plaintiffs had to show three preconditions: a racial group sufficiently large and geographically compact to form a majority in a single-member district, political cohesion within that group, and bloc voting by the white majority that usually defeats the minority's preferred candidate. If those were met, courts examined the totality of circumstances, including the history of discrimination, the extent of racial polarization, and whether minority candidates had been elected.

Louisiana's congressional map after the 2020 census drew one majority-Black district out of six in a state where Black residents make up roughly a third of the population. A federal court found a likely Section 2 violation. The legislature then enacted SB8, drawing a second majority-Black district. A separate group of voters, the Callais plaintiffs, challenged SB8 as a racial gerrymander under the Equal Protection Clause. A three-judge panel agreed and struck the map down. Louisiana appealed, and the case reached the Supreme Court for argument on October 15, 2025.

What's Happening Now

Justice Samuel Alito wrote the majority opinion, joined by Chief Justice John Roberts and Justices Clarence Thomas, Neil Gorsuch, Brett Kavanaugh, and Amy Coney Barrett. The Court affirmed the district court judgment that SB8 was an unconstitutional racial gerrymander and remanded for further proceedings.

The majority's central move is procedural. It tightened the Gingles framework along three axes. First, illustrative maps offered by Section 2 plaintiffs to show that a majority-minority district is reasonably configured cannot themselves use race as a districting criterion. Second, those illustrative maps must satisfy the state's legitimate districting objectives, including traditional criteria like compactness and respect for political subdivisions, and any specified political goals such as protecting incumbents. Third, plaintiffs presenting racial-bloc voting evidence must control for party affiliation and demonstrate that the polarization cannot be explained by partisan preference alone.

Justice Thomas, joined by Justice Gorsuch, wrote a concurrence going further. Thomas would hold that Section 2 does not regulate redistricting at all, a position he has advanced since Holder v. Hall in 1994. Justice Elena Kagan dissented, joined by Justices Sonia Sotomayor and Ketanji Brown Jackson, arguing the new evidentiary requirements render Section 2 effectively unenforceable in redistricting cases.

The disposition affirms 732 F. Supp. 3d 574 and remands. Louisiana now must produce a replacement congressional map for the 2026 cycle that complies with both the Equal Protection Clause and the narrowed Section 2. The state's congressional delegation, the secretary of state, and the legislature face a compressed timeline.

The Conservative View

The majority frames the ruling as reconciling the Voting Rights Act with the Fourteenth Amendment. Alito wrote that the statute was designed to enforce the Constitution, not collide with it. The majority's concern is that the prior Gingles framework, as applied, pushed states into race-based districting that the Equal Protection Clause forbids unless narrowly tailored to a compelling interest.

"Section 2 of the Voting Rights Act of 1965, 52 U. S. C. Section 10301 et seq., was designed to enforce the Constitution, not collide with it."

Justice Samuel Alito, opinion of the Court

Thomas and Gorsuch went further. Their concurrence argues that the text of Section 2 does not reach districting decisions and that decades of vote-dilution jurisprudence rest on a misreading of the statute. Thomas described the line of cases as a misadventure that today's decision should largely end.

Conservative legal commentators at venues like Reason have framed the holding as a return to color-blind districting. Under the majority's framework, a state legislature that draws lines using traditional criteria, then defends those lines against a Section 2 challenge by showing that any racial-bloc voting evidence is explainable by party preference, has a path to win.

The Progressive View

The dissent and civil-rights groups read the ruling as gutting Section 2 in practice without overruling it formally. Kagan wrote that the prohibitions of Section 2 are rendered nearly nugatory in redistricting cases under the new framework. Her dissent argues the majority imposed evidentiary requirements that plaintiffs cannot realistically meet in a country where partisan and racial polarization overlap heavily.

"But no longer. Under the Court's decision today, the prohibitions of Section 2 are rendered nearly nugatory in redistricting cases."

Justice Elena Kagan, dissenting opinion

The American Civil Liberties Union, the NAACP, and the Brennan Center for Justice all issued statements within hours. The ACLU said voters challenging racially discriminatory maps will face higher legal barriers and fewer statutory protections. The NAACP called the ruling a license for politicians who want to silence entire communities. Michael Waldman of the Brennan Center said the Court blessed race discrimination and encouraged partisan gerrymandering.

Rep. Jennifer McClellan of Virginia, a former state senator who litigated voting-rights cases, said the 6-3 decision upholds the formal constitutionality of Section 2 but leaves it powerless to address racial discrimination in elections. She joined calls for a congressional response.

Other Perspectives

The libertarian-leaning view, advanced most clearly in Thomas's concurrence and echoed in commentary at Reason, is that Section 2 should not have been read to reach redistricting in the first place. From this angle, the majority opinion is a half-step that preserves a doctrine the Court should abandon entirely.

A separate institutional perspective focuses on Congress. The Brennan Center and Rep. McClellan both argued that the legislative branch retains authority to restore voting-rights protections. The John R. Lewis Voting Rights Advancement Act, which has been introduced in multiple Congresses, would expand the federal preclearance regime that the Court suspended in Shelby County v. Holder (2013). Whether such legislation can pass the current Congress is a separate question, but the institutional argument is that the Court's narrowing of Section 2 is a statutory interpretation Congress can address.

State-level voting-rights statutes are a third path. New York, California, Connecticut, Virginia, Washington, Oregon, and Minnesota have enacted state voting-rights acts that operate independently of the federal statute and use different proof frameworks. Litigators may shift more redistricting challenges into state court under those laws.

Cascade Analysis: Doctrinal Ratchet from Shelby County to Callais

The mechanism at work is a doctrinal ratchet. Each ruling narrows federal voting-rights enforcement by one notch, and each narrowing creates conditions that make the next narrowing easier to justify. The chain runs through three Supreme Court decisions and one statutory framework.

Step one was Shelby County v. Holder (2013), which suspended Section 5 preclearance by striking down the coverage formula in Section 4(b). After Shelby County, states with histories of voting discrimination no longer had to obtain federal approval before changing election laws. The practical effect, documented by the Brennan Center and academic analyses, was an increase in state-level voting law changes that previously would have required preclearance.

Step two was Brnovich v. Democratic National Committee (2021), which set out guideposts for evaluating Section 2 challenges to voting rules outside the redistricting context. Brnovich made non-redistricting Section 2 cases harder to win by listing factors like the size of the disparity, the availability of other voting opportunities, and the strength of the state interest, weighted in ways that tend to favor the state.

Step three is Callais. With preclearance gone after Shelby County and non-redistricting Section 2 narrowed by Brnovich, redistricting was the most active remaining theater for Section 2 enforcement. Callais tightens the proof framework in that theater. The three procedural changes, no-race illustrative maps, traditional-criteria compliance, and partisan-control for racial-bloc voting, each independently raise the burden on plaintiffs.

The downstream links are the cases now pending or likely to be filed. South Carolina, Alabama, Georgia, and Texas all have ongoing Section 2 redistricting litigation. Each will now be re-evaluated against the Callais framework. Local jurisdictions, including county commissions and school boards, face the same recalibration. The cascade does not require additional Supreme Court action to extend, only the lower courts applying Callais to facts already in the litigation pipeline.

By the Numbers

• 6-3: Vote split in Louisiana v. Callais, with Justices Alito, Roberts, Thomas, Gorsuch, Kavanaugh, and Barrett in the majority and Justices Kagan, Sotomayor, and Jackson in dissent. Source: Louisiana v. Callais, slip opinion.
• 1986: Year the Supreme Court decided Thornburg v. Gingles, establishing the three-prong framework that Callais now modifies. Source: Thornburg v. Gingles, 478 U.S. 30.
• 1965: Year Congress enacted the Voting Rights Act and President Lyndon Johnson signed it. Source: Pub. L. 89-110, 79 Stat. 437.
• 6: Number of Louisiana congressional districts in the post-2020 map at issue. Source: Louisiana v. Callais.
• 52 U.S.C. Section 10301: Statutory codification of Section 2 of the Voting Rights Act, the provision narrowed by Callais. Source: U.S. Code.

What People Are Saying

"Section 2 of the Voting Rights Act of 1965, 52 U. S. C. Section 10301 et seq., was designed to enforce the Constitution, not collide with it."

Justice Samuel Alito, opinion of the Court

"Today's decision should largely put an end to this disastrous misadventure in voting-rights jurisprudence."

Justice Clarence Thomas, concurring opinion

"But no longer. Under the Court's decision today, the prohibitions of Section 2 are rendered nearly nugatory in redistricting cases."

Justice Elena Kagan, dissenting opinion

"With a severely narrowed Section 2, voters challenging racially discriminatory maps and voting laws will face higher legal barriers and fewer statutory protections."

American Civil Liberties Union, press release

"The Court blessed race discrimination and encouraged partisan gerrymandering. Congress has an urgent obligation to act."

Michael Waldman, Brennan Center for Justice

"While the 6-3 decision in Louisiana v. Callais upholds the constitutionality of Section 2, the conservative majority of the Supreme Court leaves it powerless to address racial discrimination in our electoral system."

Rep. Jennifer McClellan, Virginia, statement on Louisiana v. Callais

The Big Picture

Callais is the third major Supreme Court ruling in thirteen years to narrow federal voting-rights enforcement. The pattern, from Shelby County in 2013 to Brnovich in 2021 to Callais in 2026, is statutory rather than constitutional. The Court has not held the Voting Rights Act unconstitutional. It has read the statute to do less than civil-rights litigators argued it does. That distinction matters because Congress can respond to statutory rulings with legislation. Whether Congress will is a political question separate from the legal one.

For state legislatures, the immediate practical effect is more room to defend redistricting plans against Section 2 challenges, especially when partisan and racial polarization overlap. For voters in states like Louisiana, Alabama, South Carolina, and Georgia, the change shifts the litigation venue and standard but does not eliminate the underlying constitutional and statutory protections. State voting-rights acts and the Equal Protection Clause remain available. The path through them is different, and in some cases harder, than the federal Section 2 path that closed on April 29.

The next year will test the cascade. Pending cases will be re-briefed under Callais. Louisiana will draw a replacement map. Congress will face renewed pressure to pass voting-rights legislation. Each of those steps will tell observers whether the doctrinal ratchet stops here or continues to tighten.