Republican-led state legislatures in the Southern U.S. are redrawing congressional district maps following a recent Supreme Court ruling [1].

These redistricting efforts could significantly alter the balance of power in the U.S. House of Representatives by reducing the influence of minority voters before the next election cycle.

The scramble follows the April 2026 [2] Supreme Court decision in *Louisiana v. Callais*. This ruling struck down specific provisions of the Voting Rights Act that were designed to protect Black and other minority voters from being diluted in the electoral process [3]. Without these legal constraints, several states are now moving to reorganize their electoral boundaries.

Officials in Louisiana, Tennessee, Florida, Alabama, and Mississippi are among those currently updating their maps [1]. In Louisiana, the process has already led to the enactment of a nine-zero congressional map [4], which eliminates a district previously held by Black Democrats.

State legislatures are working to finalize these new boundaries before the midterm elections scheduled for November 2026 [2]. The shift in map-drawing occurs across several former Confederate states, where the Voting Rights Act previously served as a primary check against racial gerrymandering [1].

Legal experts and advocates said the ruling effectively guts key protections of the Voting Rights Act [3]. This allows Republican-led legislatures to redraw districts that may favor their party by splitting minority voting blocs across multiple districts, or concentrating them into a single area.

Republican-led legislatures in several states are updating district maps ahead of the November 2026 midterm elections.

The removal of Voting Rights Act constraints allows state legislatures to prioritize partisan advantage over racial representation. By redrawing maps just months before the 2026 midterms, these states may secure a more durable Republican majority in Congress by neutralizing the voting power of minority communities.