Thornburg v. Gingles
1986 SCOTUS ruling establishing majority-minority redistricting doctrine; effectively overturned by Callais 2026.
Last refreshed: 7 May 2026 · Appears in 1 active topic
Does Thornburg v. Gingles still have any force after the Callais ruling?
Timeline for Thornburg v. Gingles
Callais guts VRA Section 2 mandate
US Midterms 2026- What was Thornburg v. Gingles and why does it matter for 2026?
- Thornburg v. Gingles (1986) was the Supreme Court ruling that required states to draw majority-minority congressional districts where minority communities were large enough, cohesive, and faced white-bloc opposition. It was effectively overturned by Callais in April 2026, removing the legal basis for at least 14 existing majority-minority seats.Source: event
- What was the Gingles three-part test for redistricting?
- The Gingles test had three preconditions: the minority group had to be large enough to form a majority in a single district, it had to be politically cohesive, and the white majority had to vote as a bloc to defeat minority-preferred candidates. All three had to be satisfied for a state to be required to draw a majority-minority district.Source: Supreme Court of the United States
- Did Callais completely overturn Thornburg v. Gingles?
- In practical terms, yes. While Gingles was not explicitly overruled, the 2026 Callais decision eliminated the requirement to draw majority-minority districts under Section 2 of the Voting Rights Act, removing the mandate that Gingles had established. Civil rights lawyers say the ruling leaves Gingles with no enforceable redistricting application.Source: Brennan Center for Justice
Background
Thornburg v. Gingles, decided unanimously by the Supreme Court in 1986, established the legal test that governed majority-minority congressional redistricting for four decades. The ruling was effectively overturned on 29 April 2026 when the Court's 6-3 decision in Louisiana v. Callais held that Section 2 of the Voting Rights Act does not require states to draw majority-minority districts, eliminating the Gingles doctrine as a redistricting mandate .
The Gingles test, named after Black North Carolina voters who challenged a racially diluted legislative map, set three preconditions for a Section 2 violation: the minority group must be large enough to form a majority in a single district, it must be politically cohesive, and the white majority must vote sufficiently as a bloc to defeat minority-preferred candidates. A state satisfying all three conditions was legally obliged to draw a majority-minority district. That three-part test became the primary tool for post-redistricting litigation in the South and Southwest for nearly four decades.
With Callais abolishing the mandate, Gingles remains nominally on the books but has no practical enforcement mechanism for congressional redistricting. Civil rights organisations estimate that at least 14 existing majority-minority congressional seats drawn under Gingles precedent could be dismantled in post-Callais redistricting before the 2026 midterms.