Gerrymandering in the US
Gerrymandering, One Person One Vote, and the Democratic Problem of Politicians Choosing Their Voters
The central promise of representative democracy is that voters choose their representatives. Gerrymandering reverses that relationship. Instead of elections being open contests in which communities select leaders, district maps can be drawn so that elected officials and political parties preselect the voters they want in each district. This manipulation does not always violate the narrow legal requirement that congressional districts contain roughly equal populations. But it does violate the broader democratic ideal behind “one person, one vote”: that each citizen’s ballot should carry equal political weight and that electoral outcomes should fairly reflect the will of voters.
The legal idea of “one person, one vote” is rooted in cases such as Wesberry v. Sanders, where the Supreme Court required congressional districts to be drawn with roughly equal population. At the time, the problem was that some districts had far more people than others, meaning a vote in a smaller district had more representational power than a vote in a larger one. Modern gerrymandering often avoids that simple population problem. Today’s gerrymandered districts can be equal in population while still being deeply unequal in political effect. The manipulation occurs not by changing how many people live in each district, but by deciding which voters are grouped together and which are separated.
The common techniques are “packing” and “cracking.” Packing concentrates the opposing party’s voters into a small number of districts, allowing them to win those districts by overwhelming margins while wasting many votes. Cracking spreads the opposing party’s voters across several districts so they are unable to form a majority anywhere. Through these methods, mapmakers can transform a modest statewide voting advantage into a large seat advantage, or even allow a party that receives fewer votes statewide to win more seats. Articles from the Brennan Center, the Fair Elections Center, and other voting-rights organizations explain that this is how gerrymandering dilutes votes while still preserving the appearance of legal equality.
This is why gerrymandering is often described as allowing politicians to choose their voters. In a fair system, representatives must respond to a broad electorate because they can be voted out if they fail to represent their constituents. In a gerrymandered system, many representatives are protected by district lines designed to favor their party. Instead of competing for the political center or responding to changing public opinion, they may only need to satisfy a narrow partisan base. The result is less accountability, fewer competitive elections, and a House of Representatives that may not reflect the political preferences of the country.
The Associated Press and Brennan Center articles on recent House maps show that gerrymandering is not merely a theoretical problem. District design can shape control of Congress before voters cast a ballot. When a party receives a durable advantage from the map itself, elections become less responsive to shifts in public opinion. This undermines the spirit of democratic representation because voters are formally allowed to vote, but the structure of the districts limits the practical power of those votes. The problem is especially serious in the U.S. House because members are elected from single-member districts. As the Brennan Center’s discussion of proportional representation notes, winner-take-all districts make it easier for map drawers to engineer outcomes by manipulating district boundaries.
The Supreme Court’s decision in Rucho v. Common Cause intensified this problem. In Rucho, the Court acknowledged that extreme partisan gerrymandering can be “incompatible with democratic principles,” but it also held that partisan gerrymandering claims are political questions beyond the reach of federal courts. This created a striking contradiction. The Court recognized the democratic harm but refused to provide a federal judicial remedy. As Common Cause, the Campaign Legal Center, the American Bar Association, Vox, and other commentators argue, this decision effectively gave partisan mapmakers a green light at the federal level. After Rucho, voters challenging partisan gerrymanders could no longer rely on federal courts to strike down maps simply because they were drawn to entrench one political party.
The practical consequence of Rucho is that remedies must come from elsewhere: Congress, state courts, state constitutions, independent redistricting commissions, ballot initiatives, or political reform. Some state courts have taken action under state constitutional provisions, and some states have adopted independent or bipartisan redistricting commissions. But these protections are uneven. In many states, the same legislators who benefit from gerrymandered districts retain control over the redistricting process. That means the people drawing the maps may have a direct personal and partisan interest in the outcome.
This creates a deep conflict of interest. Legislators who draw their own districts are not neutral referees; they are political actors with strong incentives to protect incumbents and maximize party power. Articles from the Campaign Legal Center and League of Women Voters emphasize that this is why the phrase “voters should choose their representatives, not representatives choosing their voters” is so important. Gerrymandering allows politicians to design electorates that are favorable to themselves. It can split communities, weaken minority voting power, reduce competition, and make elections less meaningful.
The problem also intersects with racial representation. Partisan and racial gerrymandering can overlap because race and party preference are often correlated in American politics. Articles discussing Florida, North Carolina, Tennessee, Ohio, and Wisconsin show how district lines can reduce the influence of particular communities by dividing them or merging them into districts where their votes are overwhelmed. In some cases, challenges may still be brought under the Voting Rights Act or constitutional protections against racial discrimination. But Rucho made clear that purely partisan gerrymandering claims are generally not available in federal court, even when the effects on democracy are severe.
Gerrymandering therefore undermines democracy in several connected ways. First, it weakens political equality by making some votes less effective than others. Second, it reduces accountability by creating safe seats where politicians are insulated from general-election competition. Third, it distorts representation by allowing a party’s share of seats to differ dramatically from its share of votes. Fourth, it damages public trust because voters can see that outcomes are being shaped by map design rather than open competition. Finally, it encourages a cycle of escalation: if one party uses gerrymandering to gain power, the other party may feel pressure to respond in kind when it controls the mapmaking process elsewhere.
The narrow legal meaning of “one person, one vote” is not enough to solve this problem. Equal population districts are necessary, but they are not sufficient for fair representation. A map can contain districts of equal size and still be designed to waste millions of votes. The deeper democratic principle is that citizens should have an equal and meaningful opportunity to influence who governs them. Gerrymandering violates that principle by converting voters into raw material for partisan mapmakers.
The articles reviewed here point toward several possible reforms. Independent redistricting commissions can reduce the conflict of interest that occurs when legislators draw their own districts. Stronger state constitutional protections can give state courts a role after Rucho. Congressional legislation could establish national standards for fair redistricting. Alternative electoral systems, including proportional representation, could reduce the ability of mapmakers to predetermine outcomes through single-member districts. None of these reforms is simple, but each addresses the same basic democratic concern: elections should be decided by voters, not by politicians manipulating the boundaries of representation.
In the end, gerrymandering is not just a technical problem of maps. It is a problem of democratic power. When district lines are manipulated to protect incumbents or entrench parties, the formal act of voting remains, but the representative connection is weakened. Rucho v. Common Cause made this problem harder to challenge in federal court, even while acknowledging that extreme partisan gerrymandering conflicts with democratic principles. That is why gerrymandering so clearly violates the spirit of “one person, one vote.” It preserves the shell of equal districts while hollowing out the deeper promise that every voter should have an equal chance to shape political representation.
How Gerrymandering Tilts the 2024 Race for the House
| Brennan Center for Justice | September 24, 2024
A data-driven article showing how gerrymandered congressional maps can create a House seat advantage disconnected from statewide voter preference. The article is useful for explaining how formally equal districts can still produce unequal political power.
Gerrymandering Explained
| Brennan Center for Justice | August 10, 2021
A clear plain-English explainer of gerrymandering, including the techniques of “packing” and “cracking.” It explains how district lines can be drawn to dilute votes even when districts appear geographically reasonable.
What Is “One Person, One Vote?”
| League of Women Voters | May 4, 2023
This article explains the democratic ideal behind “one person, one vote,” including equal access to voting and equal representation in government. It is useful for showing how gerrymandering can violate the spirit of political equality even when districts have equal population.
Wesberry v. Sanders
| U.S. Supreme Court / Justia | 1964
This Supreme Court case established that congressional districts must be drawn so that one person’s vote is worth as much as another’s in population terms. It provides the legal foundation for the one-person-one-vote principle in congressional redistricting.
Rucho v. Common Cause
| U.S. Supreme Court | June 27, 2019
The Supreme Court held that partisan gerrymandering claims are political questions beyond the reach of federal courts. The decision is central to understanding why extreme partisan gerrymanders can continue unless Congress, state courts, or state reform processes intervene.
Rucho Revisited: 5 Takeaways on the 5 Year Anniversary
| Common Cause | June 27, 2024
This retrospective argues that Rucho was one of the most damaging Supreme Court decisions for democracy because it placed partisan gerrymandering beyond federal court review. It is especially useful for the argument that the decision gave partisan mapmakers a green light.
Common Cause v. Rucho
| Common Cause | June 27, 2019
This reaction article argues that the Supreme Court “ducked responsibility” by refusing to establish a federal constitutional standard against partisan gerrymandering. It presents Rucho as a retreat from judicial protection of voters against manipulated maps.
Supreme Court Gerrymandering Case Reveals a Profound Threat to Democracy
This article describes Rucho as a “blank check for partisan gerrymandering.” It argues that the decision allows elected officials to rig district maps in ways that preserve power and weaken democratic accountability.
U.S. Supreme Court Declines to Block Partisan Gerrymandering
| The Guardian | June 27, 2019
This news analysis explains that the Supreme Court refused to let federal courts block partisan gerrymandering and left the issue largely to state legislatures and Congress. It is useful for showing the immediate democratic concerns raised by the ruling.
Rucho v. Common Cause
| Harvard Law Review | November 8, 2019
This legal analysis explains the Court’s holding that partisan gerrymandering claims are nonjusticiable political questions. It is a useful source for understanding how the decision moved partisan gerrymandering outside the reach of federal courts.
Rucho v. Common Cause—A Critique
This academic critique argues that Rucho broke with precedent by treating partisan gerrymandering as beyond federal court competence and jurisdiction. It is useful for a scholarly argument that the ruling weakened constitutional protections for voters.
Dirty Thinking About Law and Democracy in Rucho v. Common Cause
| American Constitution Society | September 11, 2019
This article critiques the democratic theory behind the Rucho majority. It argues that the Court tolerated partisan unfairness as a normal feature of politics rather than treating extreme gerrymandering as a constitutional injury.
SCOTUS Analysis: Rucho v. Common Cause
| Emory University School of Law | July 17, 2019
This short legal analysis highlights the contradiction in Rucho: Chief Justice Roberts acknowledged that partisan gerrymandering is incompatible with democratic principles, but still concluded federal judges have no role in reviewing such claims.
Supreme Court Gives Green Light to Gerrymandering. Now What?
| WTTW / Chicago Tonight | July 2, 2019
This article uses the “green light” framing directly. It discusses what options remain after the Supreme Court refused to allow federal courts to block partisan gerrymanders.
Fight for Fair Maps Continues Two Years After Rucho v. Common Cause
| Campaign Legal Center | June 27, 2021
This article explains that after Rucho, reformers had to rely more heavily on state courts, state constitutional amendments, legislation, and independent redistricting commissions. It is useful for showing how Rucho narrowed the available remedies.
Rucho v. League of Women Voters of North Carolina
| Campaign Legal Center | March 22, 2019
This pre-decision case page explains the democratic stakes before the Court ruled. It describes partisan gerrymandering as a political weapon used by legislators to maintain power.
A Tale of Two Courts: Rucho v. Baker
| Brennan Center for Justice | April 27, 2026
This newer article contrasts Rucho with earlier democratic-representation cases. It argues that the Roberts Court helped create the modern gerrymandering crisis by refusing to police extreme partisan maps.
The Supreme Court, Gerrymandering, and the Rule of Law
| American Bar Association | July 26, 2023
This legal commentary argues that Rucho left serious constitutional harms without a federal judicial remedy. It is useful for presenting gerrymandering as a rule-of-law problem as well as a voting-rights issue.
How Gerrymandering Dilutes Your Vote, And What You Can Do About It
| Fair Elections Center | July 3, 2024
This article connects gerrymandering directly to vote dilution. It explains how redistricting rules vary by state and how limited federal oversight allows manipulation to persist.
How the AP Did Its Analysis of Partisan Advantage in U.S. House Districts
| Associated Press | August 22, 2025
This article explains the methodology behind measuring partisan advantage in U.S. House districts, including the efficiency gap. It is useful for showing how analysts determine whether one party benefits from district lines.
AP Analysis Shows Texas and California Redistricting Efforts Could Mess With Rare Partisan Balance
| Associated Press | August 22, 2025
This article examines how redistricting efforts in Texas and California could affect the partisan balance of the U.S. House. It is useful because it shows that gerrymandering can be a structural problem used by both parties.
Proportional Representation Can Reduce the Impact of Gerrymandering
| Brennan Center for Justice | September 18, 2023
This article argues that winner-take-all single-member districts make the U.S. House especially vulnerable to gerrymandering. It explains how proportional representation could reduce the ability of map drawers to predetermine outcomes.
One Person, One Vote Standard in Redistricting
| Case Western Reserve Law Review | 2012
This academic legal source examines the population-equality standard in redistricting. It is useful for distinguishing the narrow legal meaning of one person, one vote from the broader democratic ideal of equal political influence.
Texas Messes with Democracy
| Brennan Center for Justice | August 12, 2025
This article uses the core democratic principle that voters should choose their politicians, not the other way around. It analyzes Texas redistricting as part of a cycle where parties redraw districts to lock in congressional power.
Gerrymandering and the 2024 Election
| Brennan Center for Justice | 2024
This Brennan Center series frames the 2024 House election around maps designed to keep parties in power. It is useful for showing how congressional outcomes can be shaped by district design before voters cast ballots.
Gerrymandering Gives One Party a Head Start in House Race
| Brennan Center for Justice | October 2, 2024
This article connects House control to manipulated congressional district lines. It is useful for explaining how gerrymandering gives one party a structural advantage before Election Day.
Wisconsin Voters Should Choose Their Leaders, Not the Other Way Around
| Campaign Legal Center | August 2, 2023
This article directly uses the idea that voters should choose their leaders, not the other way around. It focuses on Wisconsin voters challenging maps that allegedly silenced their voices and distorted representation.
How Can We Combat Gerrymandering?
| Campaign Legal Center | August 7, 2025
This explainer says elections should be determined by voters, not politicians manipulating voting maps. It explains how gerrymandering helps parties consolidate power at the expense of voters.
Gerrymandering Harms Democracy
| League of Women Voters of North Carolina | n.d.
This source states plainly that gerrymandering allows officials to choose their voters rather than voters choosing their representatives. It connects gerrymandering to equal voting rights and representative democracy.
Gerrymandering 101: How the System Is Stacked Against Voters
| Ms. Magazine | July 22, 2025
This article explains how gerrymandering manufactures outcomes detached from voters’ preferences. It uses the “politicians choose their voters” framing and discusses how partisan control of map drawing distorts democracy.
Is Gerrymandering Legal? How Map Drawing Can Decide Elections Before You Vote
| The Democracy Group | December 9, 2025
This article opens with the contrast between voters choosing representatives and representatives choosing voters. It explains how map drawing can weaken communities’ voting power and effectively decide elections before voting begins.
What Is Redistricting?
| National Democratic Redistricting Committee | n.d.
This advocacy-oriented explainer says gerrymandering undermines the principle that voters should choose representatives, not the reverse. It explains vote dilution through packing and cracking.
Ohio Gerrymandering, Explained
| Signal Cleveland | February 2, 2024
This state-specific explainer uses Ohio as a concrete example of how gerrymandering empowers politicians to choose their voters. It is useful for showing how the issue plays out in a specific state.
Is There Anything Left in the Fight Against Partisan Gerrymandering?
This academic legal source states that partisan gerrymandering flips the democratic relationship: instead of voters choosing representatives, representatives choose voters. It also discusses the legal consequences of Rucho v. Common Cause.
Gerrymandering Is Illegal, but Only Mathematicians Can Prove It
This article explains how mathematical tools can reveal when maps are engineered for partisan advantage. It connects democratic representation to statistical methods such as the efficiency gap and map simulations.
Tennessee Special Election Shows the Power of Partisan Gerrymandering
This article discusses Tennessee’s congressional map and the splitting of Nashville’s Democratic voting bloc across Republican-leaning districts. It is useful as a concrete example of how mapmakers can reshape which voters a representative depends on.
How Ron DeSantis Waged a Targeted Assault on Black Voters
| The Guardian | April 12, 2023
This article examines Florida’s dismantling of a district that had allowed Black voters in northern Florida to elect a preferred candidate. It is useful for connecting gerrymandering to racial vote dilution and the weakening of community representation.
