Drawn to Win: How Redistricting Shapes the Value of Your Vote

Every ten years, following the national census, state legislatures across the country undertake a task that most Americans never think about: redrawing the boundaries of congressional and state legislative districts. This process, known as redistricting, determines which communities are grouped together for electoral purposes — and, in many cases, which party will hold power for the following decade. The mechanics are technical, but the consequences are profound and deeply personal.

Your zip code, in other words, may be doing more political work than your actual vote.

What Gerrymandering Actually Means

The term itself dates to 1812, when Massachusetts Governor Elbridge Gerry approved a salamander-shaped district designed to benefit his Democratic-Republican Party. A Boston newspaper christened the oddly contoured boundary a "gerrymander," and the word has stuck ever since. Today, the practice has grown far more sophisticated — aided by detailed demographic data and advanced mapping software — but the underlying logic remains unchanged: draw the lines to concentrate your opponents' voters in as few districts as possible, while spreading your own supporters across as many competitive districts as you can win.

Political scientists describe these two core strategies as "packing" and "cracking." Packing involves clustering voters of one party into a single district, effectively wasting their votes by running up enormous margins where only one seat is at stake. Cracking, by contrast, splits a concentrated community of voters across multiple districts, diluting their influence in each one. When applied together, these techniques can produce a legislative map that bears little resemblance to the actual partisan preferences of a state's population.

Real Districts, Real Consequences

North Carolina's congressional map, redrawn after the 2010 census, became one of the most scrutinized examples of partisan gerrymandering in modern American history. In 2012, Democratic candidates for the state's U.S. House seats received roughly half of all votes cast statewide — yet Republicans won nine of the state's thirteen congressional seats. The map had been engineered to deliver that outcome, and it did so with remarkable precision.

Maryland offered a mirror image. The state's 6th Congressional District, long held by a Republican, was redrawn by a Democratic-controlled legislature in 2011 to absorb heavily Democratic suburbs of Washington, D.C. The incumbent lost his seat in 2012. When he challenged the remapping in court, Republican congressman John Delaney's successor acknowledged in legal proceedings that the explicit intent had been to flip the district.

Pennsylvania's congressional map, also drawn in 2011, produced districts so contorted that one — the 7th — was commonly compared to the cartoon character Goofy kicking Donald Duck. In 2018, the Pennsylvania Supreme Court struck down the map as an unconstitutional violation of the state constitution, ordering a new one drawn before that year's midterm elections. The replacement map produced a dramatically more competitive set of outcomes.

These are not isolated anomalies. Similar patterns have emerged in Wisconsin, Ohio, Michigan, and Virginia, among others — affecting state legislative chambers as well as congressional delegations.

Why the Courts Have Struggled to Act

For decades, reformers hoped that federal courts would impose constitutional limits on partisan gerrymandering. That hope was significantly curtailed in 2019, when the U.S. Supreme Court ruled in Rucho v. Common Cause that federal courts lack the authority to adjudicate partisan gerrymandering claims under the U.S. Constitution. The majority opinion did not endorse the practice — Chief Justice John Roberts called it "unjust" — but concluded that it presented a political question beyond the reach of federal judicial remedy.

The decision shifted the arena of reform squarely to the states, where legal standards, political will, and civic pressure vary enormously.

Where Reform Is Taking Root

A growing number of states have moved to remove redistricting authority from partisan legislatures entirely, placing it instead in the hands of independent or bipartisan commissions. California established an independent Citizens Redistricting Commission in 2008, composed of registered Democrats, Republicans, and voters unaffiliated with either major party. Arizona has operated a similar commission since 2000. Michigan voters approved their own independent commission in 2018 through a ballot initiative.

These commissions are not perfect. Commissioners bring their own perspectives, legal challenges continue, and the standards guiding their decisions vary by state. But independent evidence suggests they produce maps that are meaningfully more competitive and less skewed toward the party that would otherwise control the process.

Other states have pursued different approaches. Iowa delegates its redistricting to a nonpartisan legislative staff agency, with the legislature retaining final approval but prohibited from considering partisan data in the initial drafting phase. The result has consistently been one of the most competitive congressional delegations in the country.

What You Can Do Before the Next Census

The next national redistricting cycle will follow the 2020 census, meaning the maps that will govern elections through 2030 are not far from being drawn. That timeline makes the present moment — 2017 — a critical window for civic action.

Citizens who want to influence the outcome have several concrete options. State-level ballot initiatives, where available, offer a direct path to establishing independent commissions without waiting for legislative cooperation. Advocacy organizations such as the National Democratic Redistricting Committee and the National Republican Redistricting Trust are already mobilizing resources at the state level, and nonpartisan groups like the League of Women Voters and Common Cause are pushing for structural reform.

Engaging with state legislative races — which often receive far less attention than federal contests — is particularly consequential, since state legislators in most states will hold the pen when new maps are drawn. Showing up to public hearings on redistricting, submitting formal comments, and demanding transparency in the mapping process are all forms of participation that carry real weight.

Your vote matters. But how much it matters — and which candidates it can realistically help elect — depends in no small part on the lines someone else drew around your neighborhood. Knowing that is the beginning of changing it.