Redistricting hearings, how maps are drawn and how citizens can be heard

Somewhere in your state capital there is a hearing room with a long table, a microphone nobody is using, and a stack of sign-up sheets with three names on them. The hearing is about the lines that will decide who represents you for the next ten years. The room is open to the public. The coffee is bad. The chairs are empty. And that, folks, is the scandal: the most consequential map your family will ever live inside is being drawn in front of an audience of one stenographer and a man selling a mapping subscription.

If you have ever shouted at the television about "rigged districts," I would like to redirect that energy. Shouting does nothing. Showing up with a map of your own community and three minutes of testimony does something. To use the door, you have to know where it is, so let's walk through the whole machine, from the head count to the hearing room.

Where it starts: the count

The Constitution starts the process in Article I, Section 2. Seats in the House of Representatives are divided among the states by population, and an "actual Enumeration" must be made every ten years. That is the Census. The Fourteenth Amendment, ratified in 1868, tightened the language: Representatives are apportioned by counting the whole number of persons in each state. Not voters, not citizens, persons. You can disagree with that choice (some conservatives argue the apportionment base should be different, and that is a fair debate about the text and about who counts as a "person"), but it is the rule the Constitution sets, and changing it takes an amendment, not a press release.

Census Day is April 1 of each year ending in zero. By law the Census Bureau reports the state-by-state apportionment counts to the President by the end of that year, and sends the detailed block-level numbers that map-drawers need to the states within a year of Census Day. Congress has fixed the size of the House at 435 voting seats by statute since 1929, so the count decides which states gain or lose seats, not how many seats exist.

Then comes the part most people never see. Each state takes its number of seats and draws that many districts. Every state legislature has to redraw its own districts too. Same data, same ten-year clock, many more maps. A state with a 100-seat lower house and a 40-seat senate is drawing 140 legislative districts on top of the congressional lines.

The cases that changed the rules

For most of American history, nobody enforced equal districts. Tennessee, for example, had not redrawn its legislative districts since 1901, even though the state had moved off the farm and into the cities. A vote in a tiny rural county could count for many times a vote in a city. Voters sued. For years federal courts refused to touch it; in Colegrove v. Green (1946) Justice Frankfurter warned judges against entering what he called a "political thicket."

Three decisions in two years knocked that door open.

1. Baker v. Carr (1962). The Supreme Court held that a challenge to a state's legislative apportionment under the Equal Protection Clause of the Fourteenth Amendment was something a federal court could hear. The case did not say what the right map was. It said the question could be asked. That sounds small. It was the whole ballgame.
2. Wesberry v. Sanders (1964). Georgia's congressional districts held wildly unequal populations; the Atlanta district contained far more people than some of the rural ones. The Court held that Article I's command that Representatives be chosen "by the People" of the several states means congressional districts must have, as nearly as practicable, equal populations.
3. Reynolds v. Sims (1964). Alabama's legislature had districts that ignored population in both chambers. The Court held that both houses of a state legislature must be apportioned on population. Chief Justice Warren wrote that legislators represent people, not trees or acres. Justice Harlan dissented, arguing the Fourteenth Amendment gave no such command.

A year earlier, in Gray v. Sanders (1963), the Court had struck down Georgia's county-unit system for primaries and put the phrase "one person, one vote" into the law books. The cases together give you the modern rule, and it is worth being plain about both sides of it.

The strongest argument for the rule is simple. A vote that counts three times as much as yours is a vote you have been robbed of, and the people doing the robbing were the same legislators who held the seats. Those legislators were never going to vote themselves out of a job. The courts stepped in because nobody else could.

The strongest argument against it, which Justice Frankfurter and later Justice Harlan pressed, is that the Constitution assigns the drawing of districts to legislatures and Congress, not judges, and that once courts start measuring maps they are pulled into every political fight over every line. That warning was not foolish. It is why the Court said in Rucho v. Common Cause (2019) that partisan gerrymandering claims are political questions that federal courts cannot decide. Equal population is a number a court can count. "Fair" partisan balance is not, and the Chief Justice said so.

I think the equal-population rule is sound and the Rucho line is wise. They fit together: judges can police arithmetic, and the rest is left to the states and to you. The second half of that sentence is where citizens come in.

The arithmetic of a fair line

The rule for congressional districts is nearly exact. Take the state's population, divide by the number of seats, and that is the ideal district.

Picture a hypothetical state with 7,000,000 people and 7 seats. The ideal district is 7,000,000 ÷ 7 = 1,000,000 people. A district of 1,050,000 is 50,000 over the ideal, which is 50,000 ÷ 1,000,000 = 5 percent. For congressional lines that would almost certainly be too far unless the state could prove a specific, legitimate reason. In Karcher v. Daggett (1983) the Court rejected a New Jersey plan whose largest and smallest districts differed by less than one percent, because the state had not shown the variance was needed to achieve a legitimate goal. Congressional maps are expected to be within a few people of each other.

State legislative districts get more room. Courts have generally tolerated maps whose total spread between the largest and smallest district is under ten percent, as a rule of thumb, provided the state is following a consistent policy such as keeping counties whole. That is a rule of thumb, not a license, and a plan that sits at nine percent with no reason may still lose.

Here's the thing about the arithmetic: it is the easy part. A computer can make a hundred equal-population maps in an afternoon. What separates them is the choices the computer was told to make. Which towns get split. Whose house ends up on the wrong side of a line drawn through a cul-de-sac. Those choices are the fight.

Who actually draws the map

In most states the legislature draws the congressional map and its own, passes it as an ordinary bill, and the governor signs or vetoes. That is the default the Constitution sets: Article I, Section 4 gives state legislatures the power to prescribe the "Times, Places and Manner" of congressional elections, subject to Congress's power to make or alter the rules. If you want to see how a bill moves, how a bill becomes a state law, and where a citizen can step in walks the path, because a map is a bill and it follows the same road.

A number of states have taken the pen away from the legislature and given it to a commission, usually created by a ballot initiative or a constitutional amendment. The commissions differ in who sits on them, how many members each party gets, and what the voting threshold is. The Supreme Court upheld one of these in Arizona State Legislature v. Arizona Independent Redistricting Commission (2015), five to four, holding that the word "Legislature" in the Elections Clause includes the lawmaking power the people hold through the initiative. If your state has gone that way, you can read how such measures reach the ballot in initiatives, referendums and amendments, how ballot measures really work.

A few states use hybrids: a commission that only advises, a backup commission that draws if the legislature deadlocks, or a panel of elected officials. Which one you have matters because it tells you where to aim your testimony. You do not lobby a commission the way you lobby a committee chair; you speak to the whole body and to the record. The state's own constitution and statutes control, and State Constitutions Versus the U.S. Constitution, Side by Side explains why those documents can say things the federal one does not.

The Voting Rights Act, as background

You cannot talk about maps without the Voting Rights Act of 1965. It was passed to enforce the Fifteenth Amendment's promise, ratified in 1870, that the right to vote shall not be denied on account of race, a promise that was ignored for most of a century in much of the South. Two provisions matter for maps.

Section 2 bars any voting practice that results in denying or abridging the right to vote on account of race or color, which courts have applied to district lines that crack or pack a racial minority so that its voters cannot elect candidates of their choice. The test the Court set out in Thornburg v. Gingles (1986) asks, among other things, whether a minority population is large and compact enough to form a majority in a reasonably drawn district. The Court applied Section 2 again in Allen v. Milligan (2023), leaving in place a ruling that Alabama's congressional map likely violated it.

Section 5 required certain jurisdictions with a history of discrimination to get federal approval before changing voting rules, including maps. In Shelby County v. Holder (2013) the Court struck down the formula that decided which places were covered, so the preclearance requirement has no reach today. Section 2 remains.

On the other side of the line, Shaw v. Reno (1993) held that a district so oddly shaped that it can only be explained by race can be challenged as a racial gerrymander under the Equal Protection Clause. The map-drawer is therefore squeezed: too little attention to race can violate Section 2, and too much can violate the Fourteenth Amendment. That is a hard line to walk, and it explains the lawyers at every hearing. For a citizen the lesson is simple: talk about communities, not demographics.

What mapmakers are allowed to consider

Beyond equal population and the Voting Rights Act, the criteria come from state law, and they vary. The usual list:

• Contiguity. The district is one piece.
• Compactness. The shape is not a squiggle designed to scoop up a particular street.
• Respect for political subdivisions. Fewer splits of counties, cities and towns.
• Communities of interest. Groups of people with shared concerns who should be kept together.
• Incumbent protection or avoidance. Some states allow it, some forbid it, some say nothing.
• Partisan data. Some states ban it, some ignore it, and in some it is the whole point.

The only criterion on that list that an ordinary citizen can supply from his own knowledge is the fourth. The mapmakers have the census blocks. They do not know that your valley is served by one volunteer fire department, one high school and one weekly newspaper. You do.

How to find a hearing

A hearing notice is a public document, and a public body has to publish it in advance. Getting hold of it takes about ten minutes once you know where to look.

1. The legislature's website. Look for the redistricting committee, or the joint committee that handles it, and its calendar. Most states list hearing dates, times, places and livestream links.
2. A commission's own website, if your state has one. Commissions usually run a series of regional hearings before they draft a map, and they often take written comments online as well.
3. Your secretary of state's office or the state election division, which often links to the whole process.
4. Legal notices in the newspaper of record, which many states still require for public hearings.
5. Your county party and your local legislator's office. Ask to be put on the notice list.

If the notice gives you less than a week, say so in writing. Public notice rules exist to give citizens time to prepare, and a hearing that was noticed the day before is a hearing someone ought to question. open meetings and public records, a citizen's toolkit for any local government covers what counts as adequate notice and what to do when a public body fails it.

How to give testimony that gets used

Most testimony at redistricting hearings is wasted, for one reason: it is a speech about how much the speaker dislikes the other party. Mapmakers have heard that. They cannot use it. What they can use is evidence about where one community ends and another begins. Here is a format that works in three minutes, and how to testify at a hearing in three minutes and be remembered has more on delivery.

1. Say who you are and where you live. Name your town or neighbourhood and your current district if you know it.
2. Name your community. "The river valley from the dam to the county line" is a community. "People who agree with me" is not.
3. Name what ties it together. One school district. One fire protection district. One regional hospital. The same Friday-night football team. The same church bulletin. These are the sort of facts a mapmaker can document.
4. Say what a split would do. If the line cuts your valley in half, tell them what that means: two members of Congress to call, two sets of staff, and a ballot that changes at the end of your street.
5. Offer a fix. "Keep these three townships together by moving the line to the highway." A specific change gets copied into a draft. A complaint gets filed.
6. Leave a written copy, with a hand-drawn or printed map, a list of landmarks and your contact information. Most commissions invite written comment. A map takes the argument out of your mouth and puts it into the record.

Now the honest objection, and I want to state it at full strength. The cynic says none of this matters, because the majority party already has the map in a drawer and the hearing is theatre. Sometimes that is true. But three things follow even when the cynic is partly right. First, the hearing record is the evidence a court looks at later when someone challenges the map as a violation of a state's own criteria. A record full of communities of interest that were ignored helps. A record with silence helps nobody. Second, the people who drew the draft are often just staff, and staff do read what lands in the inbox. Third, if you do not show up, you hand the room to the people who do, and the people who do show up are the ones who make a living at it.

Where this fits in the bigger fight

My view of the redistricting wars is this: a map should be drawn by clear, published rules, the same for every district, and a state should be able to explain every split to a voter in plain English. A good map survives that test. A bad one needs a lawyer to explain it.

For a campaign, the map is also the first number you need. Before you decide to run for anything, you need to know the lines. The votes you need depend on the district size and how many people turn out, and the win-number worksheet, how many votes does your race really take shows the arithmetic. If you have never read the Constitution's language on the House, A Walkthrough of the Constitution You Can Finish in One Evening takes you through Article I, and How the Electoral College Works, From Election Day to the Joint Session explains why the count also matters for presidential elections, because the number of electors a state gets is its number of House seats plus its two Senate seats.

The bottom line

• Maps are drawn once a decade from the Census, and the lines shape every election from school board to Congress until the next count. Getting involved in the year the lines are drawn counts for more than any single election after it.
• The courts require equal population, with the Voting Rights Act as a floor and the Equal Protection Clause as a limit. They have said partisan fairness is for the states and the voters, not the federal bench.
• Find your state's hearing calendar on the legislature's or the commission's website, and ask your legislator's office to put you on the notice list.
• Testify about your community in concrete terms: the river, the school, the fire district. Bring a map and leave a written copy.
• Ask your state for published, consistent criteria for every district. A rule that applies the same way to both parties is worth more than a map that happens to help yours.