The Supreme Court Made Voting-Rights Cases Much Harder to Win. It Didn’t Strike Down the Law to Do It.

On April 29, 2026, the Supreme Court ruled 6–3 in Louisiana v. Callais that Louisiana's congressional map — redrawn to include a second majority-Black district — was an unconstitutional "racial gerrymander." That's the headline. The part that will outlast this one map: the Court changed the rules for the Voting Rights Act itself, making it much harder to prove that a voting map discriminates against minority voters.

The law is still on the books. What changed is how hard it is to win a case under it.

What the case was about

A "racial gerrymander," in plain terms, is a voting district drawn mainly on the basis of voters' race. The Constitution's Equal Protection Clause limits when the government can do that.

Here's how Louisiana ended up there. A court first found the state's map shortchanged Black voters and said Louisiana needed a second district where they could realistically elect their candidate of choice — to comply with Section 2 of the 1965 Voting Rights Act, the part that bans maps that "dilute" minority voting power. Louisiana drew that second district. Then a different set of voters sued, arguing the new district was itself unconstitutional because race had driven how it was drawn. The Supreme Court agreed with them — holding that Section 2 hadn't actually required the second district in the first place, so race-based line-drawing wasn't justified.

What actually changed

For 40 years, under a 1986 case called Thornburg v. Gingles, you could win a Section 2 claim by showing results: that a map left minority voters with less opportunity to elect their candidate. You did not have to prove anyone meant to discriminate.

The Callais Court kept the Gingles test by name but tightened every part of it, and pushed the standard toward intent — toward proving mapmakers acted because of race, not just that the map turned out unequal. Among the changes: the sample maps challengers use to make their case can no longer themselves take race into account, and must meet all of the state's other map-drawing goals; and evidence of historical discrimination now counts for far less.

Justice Alito wrote for the majority. The three dissenters — Justices Kagan, Sotomayor, and Jackson — argued the Court had quietly turned Section 2 back into the intent test that Congress deliberately removed in 1982, with Kagan calling the decision the "now-completed demolition of the Voting Rights Act." The majority rejects that label, saying its standard requires a "strong inference" of discrimination, not outright proof of intent. Both characterizations are in the opinion. The practical effect — fewer winnable cases — is not really in dispute.

What the ruling did NOT do

• It did not repeal Section 2 or declare it unconstitutional. The statute stands.
• It did not overrule Gingles, and it did not overrule Allen v. Milligan, the 2023 Alabama case that came out the other way — the Court distinguished it.
• It does not touch Section 2 outside of redistricting (things like voter-ID or polling-place rules).
• Two justices, Thomas and Gorsuch, wanted to go further and hold that Section 2 shouldn't apply to district maps at all. The majority declined.

The real-world result is already visible: with Section 2 weakened, several Southern states are redrawing congressional maps, putting majority-Black districts — and the Black members of Congress they elect — at risk.

What you can do

This ruling has two layers. The racial-gerrymander part rests on the Constitution, which no ordinary law can override. But the part that narrowed Section 2 turns on how Congress wrote the statute — and Congress can rewrite it.

The bill that would: the John R. Lewis Voting Rights Advancement Act of 2025 (H.R. 14 in the House, S. 2523 in the Senate), which would restore and strengthen the protections Callais cut back. Read it in plain English on LegisPlain, or see the bill itself on Congress.gov. It's in committee and not expected to pass the current Senate — that's the honest picture — but it's the live lever. Here's how change actually happens after a ruling like this.