Every ten years, district lines get redrawn to match the census — and for two years running now, several states have been redrawing them again, mid-decade, for no reason but political advantage. This audit grades the constitutional design governing how congressional districts get drawn: who has the power, what checks exist, and which ones the courts have simply declined to enforce. Same method as the Senate and House entries — one design feature at a time, scored 0–100, every measurement cited. Reporting on documents, not legal advice.
The pattern
Redistricting’s constitutional design splits cleanly into features that work and one gaping hole that doesn’t. Population equality is enforced hard. The independent-state-legislature theory — the idea that state legislatures could draw maps with zero outside review — was rejected outright in 2023. But the two features that would actually restrain a legislature from drawing districts purely to entrench one party are either judicially abandoned or were never written into the Constitution at all. That gap is not theoretical: it is the entire reason Texas and California spent 2025 redrawing their maps against each other, mid-decade, with no election, no new census, and no legal trigger required.
The scored card
Same warning as every entry: every factual figure below is a measurement, cited to a court ruling, a statute, or a tracked count of state action. The final grade is not. It is the journal’s editorial judgment of how well each design feature is actually functioning in 2026. We publish the reasoning so you can argue with the math.
Scale: 85+ functioning as designed, no real erosion · 65–84 solid, real but limited strain · 45–64 mixed — meaningful erosion alongside real function · 25–44 substantially bypassed in practice · under 25 functionally hollowed out.
Equal population, "one person, one vote"
Article I, Section 2Wesberry v. Sanders, 376 U.S. 1 (1964), held that congressional districts within a state must be drawn to have populations "as nearly as is practicable" equal, so one person's vote counts as much as another's. This is the one piece of redistricting law that functions almost exactly as the Court intended — every state redraws its maps to near-mathematical population equality after each census, without exception or serious legal challenge.
Congress's override power
Article I, Section 4 (Elections Clause)The Elections Clause gives Congress the power to "at any time by Law make or alter" the regulations governing how congressional elections are held, including redistricting — a power the Supreme Court has called "paramount" over the states'. Congress has had this override sitting unused for the entire modern redistricting era. Federal legislation that would have imposed national redistricting standards and banned partisan gerrymandering, the For the People Act, passed the House in 2021 but died in the Senate to a filibuster and has not been reintroduced with any realistic path since. The power exists. Nobody with the votes to use it has.
State legislatures aren't unchecked
Moore v. Harper (2023)The "independent state legislature theory" argued that state legislatures have sole, unreviewable authority to draw congressional maps — immune from state courts and state constitutions entirely. In Moore v. Harper, 600 U.S. 1 (2023), Chief Justice Roberts wrote for a 6-3 majority rejecting that theory outright: state legislatures drawing congressional maps remain subject to ordinary state judicial review under their own state constitutions. A maximalist version of unchecked map-drawing power was on the table as recently as 2023, and the Court declined to grant it.
Racial gerrymandering protection
Voting Rights Act §2Section 2 of the Voting Rights Act bars maps that dilute minority voting power, tested under the three-part framework from Thornburg v. Gingles, 478 U.S. 30 (1986). In Allen v. Milligan, 599 U.S. 1 (2023), the Supreme Court affirmed Section 2 still has teeth, ruling 5-4 that Alabama's congressional map likely diluted Black voting power and ordering a second majority-Black district drawn. Real, functioning protection — but Section 2's private right of action itself is under direct challenge in ongoing federal litigation, and this is the one racial-gerrymandering ruling standing between the doctrine and a much weaker version of itself.
Partisan gerrymandering: no federal check
Rucho v. Common Cause (2019)The worst score on this card. In Rucho v. Common Cause, 588 U.S. 684 (2019), the Supreme Court held 5-4 that partisan gerrymandering claims are nonjusticiable political questions — federal courts have no role in policing maps drawn purely to maximize one party's seats, no matter how extreme. The Court itself conceded partisan gerrymanders are "incompatible with democratic principles." It ruled against itself having any power to do anything about it anyway. This is the single ruling that makes everything below possible.
Independent redistricting commissions
Arizona State Legislature v. AIRC (2015)The Supreme Court upheld voter-created independent commissions in Arizona State Legislature v. Arizona Independent Redistricting Commission, 576 U.S. 787 (2015), holding "the Legislature" under the Elections Clause includes the people acting through ballot initiative. Nine states currently use some form of independent commission. But the design's fragility was proven in 2025: California, one of the nine, suspended its own independent commission by ballot measure specifically so the legislature could draw a partisan map to counter Texas. A check that can be voted away the moment it becomes inconvenient is a weak check.
No limit on redistricting frequency
Constitutional silenceNothing in the Constitution restricts states to redrawing maps once per decade after a census — that's custom, not law. In August 2025, Texas passed a mid-decade congressional map projected to add up to five Republican-leaning seats, with no new census and no court order requiring it. California answered by suspending its own independent commission and passing a legislature-drawn map by ballot measure in November 2025, projected to flip roughly six seats toward Democrats. The Supreme Court allowed Texas's map to stand for 2026 while litigation continues. Neither state broke a rule, because there isn't one.
The lowest institutional grade in the Capitol Audit so far, and the math explains why. This isn’t a card where every feature is a little worn. It’s a card where population equality works close to perfectly, the independent-state-legislature theory got shut down at the Supreme Court, and then two entirely separate design gaps — a federal override power nobody uses, and a total absence of any rule about how often maps can be redrawn — combine to leave partisan actors a wide-open lane, one the Court has explicitly said it will not police.
The last word
Two findings matter more than the average. First: Rucho didn’t just decline to regulate partisan gerrymandering — it removed the only body that could have set a national standard, and did so eight years before Texas and California proved exactly what that removal permits. Second: the redistricting “arms race” of 2025-26 is not a scandal or a broken rule. It is two state governments using entirely lawful tools, at the same time, to cancel each other out — which is what happens when a design gap gets discovered by people with the incentive to use it.
Ubi non est lex, non est transgressio — where there is no law, there is no transgression. Texas and California didn’t break anything. They found the one part of Article I that was never finished, and started using it.
Sources & methodology:
- Elections Clause and Congress’s override power: U.S. Const. art. I, § 4; Congress.gov Constitution Annotated
- Wesberry v. Sanders, 376 U.S. 1 (1964): Justia
- Moore v. Harper, 600 U.S. 1 (2023): Brennan Center for Justice
- Allen v. Milligan, 599 U.S. 1 (2023) and Thornburg v. Gingles, 478 U.S. 30 (1986): Congressional Research Service
- Rucho v. Common Cause, 588 U.S. 684 (2019): Brennan Center for Justice
- Arizona State Legislature v. Arizona Independent Redistricting Commission, 576 U.S. 787 (2015) and current commission-state count: Congressional Research Service; Common Cause
- 2025-26 Texas and California mid-decade redistricting: MultiState — Texas and California Face Legal Challenges Over 2026 Redistricting; contemporaneous reporting
- The grades are the journal’s editorial judgment; every underlying factual claim above is independently sourced as cited.