**Several states adopted new congressional maps mid-decade ahead of the 2026 midterms through legislative action, ballot measures, or court orders, driven by partisan efforts and a key Supreme Court ruling.** The wave began in summer 2025 when Texas Republicans, following public encouragement from President Trump, enacted a new map via special session; this prompted responses including California's voter-approved Proposition 50 shifting five seats toward Democrats. The April 2026 *Louisiana v. Callais* decision limited Voting Rights Act challenges to racial gerrymandering, enabling additional redraws in states like Florida, Tennessee, Alabama, and Louisiana. As of mid-October 2026, new maps are in force in Alabama, California, Florida, Louisiana, North Carolina, Ohio, Tennessee, Texas, and Utah, though ongoing litigation continues in multiple states and Missouri reverts to its prior map pending a November referendum. These shifts reflect state-level control of redistricting processes and recent judicial precedent shaping which boundaries reach Election Day.