Data is Beautiful: “The GOP is forecasted to pick up +8 to +10 U.S. House seats via legislative redistricting as new congressional maps are finalized. Legal challenges may still overturn some maps. Geographically, most projected GOP gains are concentrated in Deep South states which have a long history of Voting Rights Act litigation. Several of the key seat pickups come from districts previously created to provide Black representation (eg, TN, AL and LA). All states redistricting in favor of Democrats did so through a voter-approved map. All states redistricting in favor of Republicans did so through the state legislature or through the courts overturning a voter-approved map.

• Tools: Built by hand in React + TypeScript — the timeline chart and US choropleth are raw SVG (no D3 or charting libraries; state shapes from a public-domain Wikimedia map), driven by a JSON file of redistricting events, with live Polymarket odds as the only dynamic data.
• Methodology: Estimated seat impact for each enacted, court-approved, or voter-approved congressional redistricting action relative to the prior map. Ohio is shown as 0–2 GOP seats because previously safe Democratic districts became toss-ups rather than guaranteed GOP pickups. This is an isolated analysis of states that changed maps and is not a full 2026 House forecast. Used actual news stories and Polymarket data to corroborate confidence…”