Gerrymandering: How It Shapes Modern Election 2026

Last Updated on April 23, 2026 11:04 am by Rohit Gadhia

Imagine two football teams playing a match — but one team gets to draw the boundary lines of the pitch. And they draw it in a way that gives themselves an unfair advantage before a single player steps on the field.

That, in essence, is gerrymandering.

It is one of the most powerful — and most invisible — tools in politics. No votes are tampered with. No ballot boxes are stolen. No laws are broken outright. Yet through a quiet, technical process of drawing lines on a map, politicians can effectively decide election results before voters even show up.

This article gives you a complete, honest explanation of gerrymandering — what it is, how it works, real examples from the US and around the world, its connection to India’s Delimitation debate, and what countries are doing to fight it.

What Exactly Is Gerrymandering?

Gerrymandering is the deliberate manipulation of electoral district boundaries to give one political party an unfair advantage over another.

In a democracy, the country is divided into constituencies or districts. Each district elects one representative. Who wins each district depends on how many voters of each party live within it. This sounds straightforward — but here is the problem. Someone has to draw those boundary lines. And whoever draws them holds enormous power.

By carefully choosing which streets, neighbourhoods, towns, and regions fall inside which district, the people drawing the maps can almost guarantee that one party wins more seats than their actual voter support would normally deliver.

The word gerrymandering itself has a fascinating origin. In 1812, Elbridge Gerry — then Governor of Massachusetts — approved a new electoral district so bizarrely shaped that it resembled a salamander. A Boston newspaper combined his name with the animal and coined the term “Gerry-mander.” The word stuck, and the practice it describes has been corrupting democracies ever since.

How Gerrymandering Works: The Two Core Tactics

Gerrymandering explained simply comes down to two main strategies. Both are designed to waste the opposition’s votes.

Strategy 1: Packing

Packing means cramming as many opposition voters as possible into a single district.

Say a city has many opposition supporters. Instead of spreading those voters across four districts where they might swing the results, the map-drawers shove them all into one district. The opposition wins that one district by a landslide — say 90% to 10%. But all those extra votes beyond what was needed to win? Wasted.

Meanwhile, the ruling party wins the surrounding three or four districts more comfortably, because the opposition’s strongest voters are locked away in that one “packed” district.

Result: Opposition wins 1 seat. Ruling party wins 4. Even though the total number of opposition supporters might be nearly equal to the ruling party’s.

Strategy 2: Cracking

Cracking is the opposite tactic — and equally effective.

Here, the map-drawers take a large group of opposition supporters and deliberately split them across multiple districts. Instead of concentrating them where they could form a majority, they are diluted. In each district they appear in, the opposition is a minority and loses.

Imagine 100,000 opposition voters split across five districts — 20,000 in each. In each district, they lose to 30,000 ruling party voters. The opposition wins nothing. Yet if those 100,000 voters had been in two districts, they might have won both.

Result: Despite having 100,000 supporters, the opposition wins zero seats.

In practice, politicians often combine both tactics — packing and cracking — to engineer a political map that looks neutral on paper but functions like a rigged system.

Real-World Examples of Gerrymandering

Understanding gerrymandering explained in theory is one thing. Seeing it in practice makes the danger real.

North Carolina, USA

North Carolina is one of the most documented examples of gerrymandering in recent history. The state’s electorate is almost evenly divided between the two major parties. You would expect election results to reflect that balance.

They do not.

In 2016, slightly more than half of North Carolina voters chose Republican candidates for Congress. Yet Republicans won approximately 77% of the available congressional seats — far beyond what their vote share would justify under a fair system. Federal courts later ruled that the congressional map was unconstitutional due to racial and partisan gerrymandering.

Wisconsin, USA

Wisconsin is another textbook case. In the 2012 state legislative elections, Democrats won a majority of the total statewide vote. Yet Republicans won 60 out of 99 Assembly seats — a commanding majority in the chamber despite losing the popular vote.

The maps had been drawn using a strategy of packing Milwaukee’s heavily Democratic voters into fewer districts while cracking Democratic voters in the suburbs and rural areas across multiple Republican-leaning districts. In 2025, Texas went a step further when Republican leaders initiated a rare mid-decade redrawing of electoral districts — without waiting for the census — specifically to gain seats in the 2026 midterms.

The Rucho v. Common Cause Ruling (2019)

In a landmark — and controversial — decision, the US Supreme Court ruled in Rucho v. Common Cause that federal courts cannot intervene in partisan gerrymandering. This ruling essentially opened the door for state legislatures to gerrymander as aggressively as they want, with little federal judicial oversight. Only state courts can now challenge gerrymandered maps under state constitutions — a patchy and inconsistent protection at best.

Why Gerrymandering Is So Dangerous for Democracy

Gerrymandering explained as just a map-drawing issue undersells how serious it actually is. Its effects reach deep into the health of democracy itself.

1. Seats Win Without Votes

The most direct damage: a party can win far more seats than its actual voter support justifies. This breaks the foundational promise of democracy — that the government reflects the people’s will.

2. Safe Seats Kill Competition

When districts are drawn so one party has an overwhelming advantage, elections become foregone conclusions. The real contest moves to the primary election — where only the most loyal, ideologically extreme members of the base vote. This pushes elected officials toward extreme positions, because they only need to please their hardcore base, not the general public.

3. Political Polarisation Deepens

Research consistently shows that gerrymandered districts produce more extreme legislators. When a politician’s seat is safe regardless of what the broader public thinks, there is no incentive to compromise or work across party lines. The result is gridlock, dysfunction, and a political system that stops solving real problems.

4. Voters Feel Their Vote Is Worthless

When outcomes feel predetermined, voters disengage. Turnout drops. Cynicism rises. And paradoxically, this disengagement makes the gerrymander even more effective — because the voters most likely to challenge the rigged system simply stop showing up.

5. Minorities Get Silenced

Gerrymandering has historically been used to dilute the voting power of racial and ethnic minorities. In Texas, districts have repeatedly been drawn to minimise Hispanic voting strength. Across the American South, communities of colour have been packed or cracked to prevent them from electing representatives who reflect their interests.

Gerrymandering Around the World

While the United States is the most documented case of gerrymandering, it is far from the only country where boundary manipulation has been a problem. What is striking, however, is how many countries have successfully addressed it — something the US has largely failed to do.

United Kingdom

The UK uses four independent Boundary Commissions — one each for England, Scotland, Wales, and Northern Ireland — that operate entirely separately from the government. They review constituency boundaries every eight years. Since 2020, Parliament itself has no direct role in approving the changes. The result is a system that is not perfect, but is significantly more resistant to partisan manipulation than the US model.

Australia

Australia goes even further, using a fully independent Australian Electoral Commission and its state-based counterparts to determine all electoral boundaries. The process involves a two-tiered public consultation — before and after constituency mapping — allowing citizens to raise objections. Courts see far fewer gerrymandering cases in Australia than in the US.

Canada

Canada adopted an independent commission model in 1964, modelling its approach on Australia’s redistricting process. Each province has a three-member panel — including a judge — that draws federal electoral boundaries. The result: Canada sees very little partisan gerrymandering, and its districts are more compact and cohesive than their American counterparts.

India: A Different Model

India has largely avoided the worst forms of gerrymandering through its Delimitation Commission of India — a statutory body that redraws constituency boundaries after every census based purely on population data. The Commission operates independently of the central government and its recommendations cannot be challenged in court once finalized, which insulates the process from political interference.

However, India is not without its own debates around fair representation. The current controversy around the Delimitation Bill 2026 — which proposes redrawing constituency boundaries based on the 2021 census — has raised serious concerns. Southern states like Tamil Nadu, Karnataka, and Kerala fear they will lose parliamentary seats because their populations grew more slowly (partly because they invested more in education and family planning). Critics argue this punishes states for good governance — which raises questions that, while not gerrymandering in the traditional sense, reflect the same core issue: do electoral boundaries serve voters fairly, or do they serve those in power?

Is Gerrymandering Legal?

The legal status of gerrymandering is complicated and varies by country.

In the United States, the Supreme Court’s 2019 Rucho v. Common Cause ruling established that partisan gerrymandering is beyond the reach of federal courts — effectively making it legal at the federal level. State courts, however, can still strike down maps that violate state constitutions. Several have done so, including the North Carolina Supreme Court and the Wisconsin Supreme Court.

In India, the Supreme Court has weighed in on delimitation in notable cases. In Haji Abdul Gani Khan v. Union of India (2023), the Court emphasised that delimitation must not erode federalism or equality. In Kishorchandra Chhanganlal Rathod v. Union of India (2024), the Court held that Article 329 does not absolutely bar judicial review of delimitation orders — leaving open the possibility that future legal challenges could succeed.

In most established democracies, gerrymandering exists in a legal grey area — not explicitly banned, but subject to challenge when it violates constitutional principles of equal representation.

How Can Gerrymandering Be Prevented?

The good news is that gerrymandering explained as a problem has well-understood solutions. The bad news is that those solutions require politicians to voluntarily give up power — which is why reform is so difficult.

Here are the most effective approaches:

Independent Redistricting Commissions

The single most effective solution is removing politicians from the map-drawing process entirely. The UK, Australia, Canada, and New Zealand all use independent commissions with no elected officials as members. States like Michigan and Colorado in the US have moved in this direction, with encouraging early results.

Transparent, Public Processes

Countries like Australia and Canada have shown that public consultation — allowing citizens to raise objections to proposed maps — significantly reduces partisan bias. When map-drawing happens behind closed doors, manipulation thrives.

Data-Driven Mapping

Advances in technology have produced mathematical tools to measure gerrymandering objectively — including the Efficiency Gap, Mean-Median Difference, and Partisan Bias metrics. These tools can be used to evaluate whether a proposed map is fair, or whether it systematically wastes votes.

Proportional Representation

Some political scientists argue that the deeper problem is the winner-takes-all single-member district system itself. Under proportional representation, parties win seats in proportion to their share of the total vote — making gerrymandering largely pointless, because there are no single-winner districts to manipulate.

The India2040 Take: Why Gerrymandering Matters for India

India is at an inflection point in its electoral geography. As the Delimitation Bill 2026 moves forward, questions of fair representation are no longer theoretical.

Whether India’s redrawing of constituency boundaries serves voters fairly — or serves the party in power — will shape the country’s democratic future for decades. Understanding gerrymandering explained clearly is therefore not just an academic exercise for India. It is essential knowledge for every citizen who cares about whether their vote actually counts.

The lesson from around the world is clear: electoral boundaries are too important to be left to politicians. The countries that have given this power to independent, transparent, and accountable bodies have healthier democracies. Those that have not are still fighting the consequences.

External Sources

📢 Disclaimer: This article is published for informational and educational purposes only. All political examples, court rulings, and electoral data cited are sourced from publicly available, credible sources including the Brennan Center for Justice, Princeton Gerrymandering Project, Pew Research Center, and peer-reviewed academic sources. India2040 does not endorse or oppose any political party, government, or electoral system. The analysis of gerrymandering and delimitation reflects independent editorial judgment. Readers are encouraged to verify information independently and form their own conclusions. India2040 is an independent media publication not affiliated with any political organisation or government body.

Rohit Gadhia

I am an independent analyst and contributor at India2040, covering the intersection of Indian politics, economy, and public policy. I focus on electoral affairs, government policy, and India’s long-term growth story, with the aim of making complex national developments accessible to a wider audience. I am based in Gujarat and have been closely following Indian political and economic developments for several years. For queries or story tips, you can reach me at rohit@india2040.com

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