The decision could serve as a groundswell moment for Republicans across the country, who have been forced to create majority-minority districts in some states to comply with the VRA for decades.

The dispute stems from a challenge by a group of voters who identified as “non-African American” to a 2024 redistricting map adopted after a federal court invalidated the prior map for violating the VRA. While the state’s revised map added a second majority-black district to address those concerns, the Supreme Court ultimately found that the configuration crossed the line, ruling that the new map constituted an unconstitutional racial gerrymander.

Alito, an appointee of former President George W. Bush, added that “[c]ompliance with Section 2 thus could not justify the State’s use of race-based redistricting here.” His opinion was joined by Chief Justice John Roberts along with justices Clarence Thomas, Neil Gorsuch, Brett Kavanaugh, and Amy Coney Barrett, the latter three appointed by President Donald Trump.

Section 2 of the Voting Rights Act has long been interpreted by courts to prohibit not just outright discrimination in redistricting, but also any redistricting efforts that dilute minority voting strength, regardless of the state’s intent. That often required states, under the Supreme Court’s Gingles framework, to create majority-minority districts.

In a dissent by Justice Elena Kagan, an appointee of former President Barack Obama, she argued that the majority “betrays its duty to faithfully implement the great statute Congress wrote. I dissent because the Court’s decision will set back the foundational right Congress granted of racial equality in electoral opportunity.” Justices Sonya Sotomayor and Ketanji Brown Jackson joined her dissent, which notably ditched the traditional standard of writing, “I respectfully dissent.”

In a separate concurrence, Thomas, an appointee of former President George H.W. Bush, agreed with the court’s 6-3 ruling but argued the justices should have gone further, reiterating his long-standing view that Section 2 of the Voting Rights Act does not apply to redistricting at all. Thomas wrote that the statute’s text is limited to voting qualifications and procedures governing access to the ballot, not how states draw district lines, and said that “no §2 challenge to districting should ever succeed,” calling decades of related case law a “disastrous misadventure.”

Louisiana v. Callais was initially heard by the high court early last year, before the justices punted on a ruling in June 2025 and scheduled rearguments for October 2025. The rearguments late last year centered on whether Louisiana’s creation of a second black-majority district, drawn to comply with a previous court order based on Section 2 of the VRA, violates the 14th or 15th amendments of the Constitution.

The case was widely viewed as a direct challenge to the parameters for race-based legal challenges of congressional maps under Section 2 of the VRA, established by the Supreme Court’s 1986 ruling in Thornburg v. Gingles.

The Gingles standard found that if a minority group makes up a significant portion of a state’s population and lives in a sufficiently compact area, that group should be entitled to elect its preferred candidate via its own majority congressional district. The Gingles holding aimed to curb the unlawful dilution of minority groups’ voting power in elections by ensuring their representation through these VRA opportunity districts.

During rearguments in October 2025, the conservative majority on the Supreme Court appeared poised to toss out or significantly weaken the Gingles precedent. Justice Brett Kavanaugh, viewed as a key swing vote in the case after upholding Gingles in a 2023 ruling, questioned what the endpoint would be for when race should no longer be considered in the redistricting process.

Louisiana officials, who were sued by a group of white voters over the creation of the second black-majority district, ultimately asked the high court for clarity on race-based redistricting rules. The Callais lawsuit came years after a different lawsuit saw a court order the creation of the second black-majority district, which is now at the center of this case.

Officials from the Pelican State also urged the high court to strike the map as an unconstitutional racial gerrymander and to strike down the Gingles standard as well.

The justices declined to scrap the longstanding Gingles framework outright, instead opting to narrow and recalibrate it to better align with the text of the Voting Rights Act and constitutional limits. Alito wrote that the framework remains intact but must be applied with stricter guardrails—particularly by requiring plaintiffs to disentangle race from politics and to show evidence pointing to intentional discrimination, rather than relying on racial disparities alone, in order to suceed in having courts throw out congressional maps.

KAVANAUGH QUESTIONS WHEN ‘ENDPOINT’ FOR RACE-BASED REDISTRICTING WILL BE

As many as 12 Democratic congressional districts could be redrawn into Republican ones, with Gingles now effectively muted as a legal standard, according to one analysis by the New York Times. Another report by left-wing group Fair Fight Action found that as many as 19 Democratic congressional seats could be in jeopardy.

The Callais case is one of a trio of cases before the Supreme Court this term that could have significant impacts on November’s midterm elections and the 2028 elections, alongside cases involving campaign finance and counting late-arriving mail ballots.