Skip to content
Search

Latest Stories

Follow Us:
Top Stories

Meet the reformer: Sam Wang, a professor of fair redistricting math

Sam Wang, Princeton Gerrymandering Project

Sam Wang is the director of the Princeton Gerrymandering Project.

Princeton Gerrymandering Project

Sam Wang is a professor of neuroscience at Princeton, where he's been on the faculty 14 years and focuses on how the brain processes sensory, cognitive and emotional information. But he's also part of the university's Program in Law and Public Affairs. He created the Princeton Election Consortium in 2008 to come up with statistical models for predicting presidential and Senate results based on polling. And after the last nationwide redistricting, in 2012, he created the Princeton Gerrymandering Project. Today he and his seven-member team run a website that permits voters to use mathematical models to decide if where they live is in an unfairly skewed legislative or congressional district. His answers have been edited for clarity and length.

What's the tweet-length description of your organization?

Combining data, tech and law to help citizens make district lines fairer and eliminate bugs from democracy.


Describe your very first civic engagement.

In 1978, when I was in sixth grade in California, I became very interested in two ballot propositions that would affect school funding. I loved school so these were important to me. The one that would have increased school funding, Proposition 8, failed. The other was Proposition 13, the first of many tax-cutting initiatives passed across the nation. After that, school funding was cut dramatically. So my side lost. But in politics you should never give up.

What was your biggest professional triumph?

In neuroscience it's a tie. First, figuring out how a brain structure, the cerebellum, which is mainly known for processing sensory information to help us move smoothly, could also guide higher function and when it goes off track lead to autism. Also, seeing the success of dozens of great students and scholars who have gone on to do all kinds of amazing things.

In redistricting it's another tie. First, seeing my team shape redistricting fairness in New Jersey by stopping a ballot initiative that would have biased districting, possibly helping with the wording of a fairer initiative and then getting an actual law passed to mandate transparency in precinct voting data so citizens can see what's being done to their district lines. Second, seeing Chief Justice John Roberts quote my words that there are good mathematical tests for identifying partisan gerrymandering

And your most disappointing setback?

Chief Justice Roberts again. He is not a math guy and he was not taking our side. Despite having no quarrel with our math, he wrote the majority opinion last year that wussed out and turfed the question of partisan gerrymandering back to the individual states to deal with. It was in my view an abdication of the Supreme Court's duty to stop a clear constitutional offense in the face of airtight mathematical and geometric approaches. The good news is that all our technical approaches can be used in the states — and we are doing that in North Carolina, Virginia, Michigan and half a dozen others. So we get to stay in business for a while.

How does your identity influence the way you go about your work?

As a former physics guy from a relatively privileged demographic, I started thinking about districting fairness in simple terms for which we could establish a national standard: fairness between the parties and numerical tests for racial bias. After encountering the needs of real communities, I've now learned that the richness of communities across the nation deserve consideration. We're working on ways to present that effectively across many states. This probably fits well with my work as a biologist, part of which involves attending to a lot of details.

What's the best advice you've ever been given?

It's better to ask for forgiveness than permission.

Create a new flavor for Ben & Jerry's.

Honey-dipped locust. (An homage to the cricket I ate live on CNN in 2016 to settle a bet. My statistical analysis of the polls had prompted me to wager I would "eat a bug" if Donald Trump won more than 240 electoral votes.)

What is your favorite TV show or movie about politics?

"Mean Girls."

What's the last thing you do on your phone at night?

I don't understand what the word "last" is doing in that sentence. That implies stopping, right?

What is your deepest, darkest secret?

I once made a pilgrimage to Carhenge.


Read More

​U.S. President Donald Trump sitting in the Oval Office.

U.S. President Donald Trump speaks during an announcement on American nuclear innovation in the Oval Office at the White House on July 24, 2026 in Washington, DC.

Eric Lee/Getty Images

Trump’s Elections Speech Was Not the Opening Shot; It was the Latest Salvo

President Donald Trump’s recent address repeating his claim that he won the 2020 election was widely portrayed as a dramatic escalation of his attacks on our election system. It wasn’t.

It is nothing new!

Keep ReadingShow less
 Woman voting on election day

Proportional representation is gaining momentum in the U.S. Explore ranked choice voting, open-list systems, constitutional limits, and the future of electoral reform.

Getty Images, Tetra Images

Which Proportional Voting System Best Fits America’s Constraints?

In the wake of recent redistricting battles, proportional representation is having a moment. Ezra Klein devoted an entire episode to touting it as a solution to gerrymandering. A flock of Substackers and influencers chimed in. Even Kamala Harris and Pete Buttigieg came out as PR curious.

From the hubbub, you might assume that most students of US elections believe that multi-winner districts with proportional representation are the only full solution to the redistricting wars, and you’d be right. But beyond that point of consensus, agreement breaks down. Proponents split into camps over which type of proportional representation to pursue.

Keep ReadingShow less
Two people at separate voting booths, filling out a ballot.

Voters cast their ballots in Colorado's primary election at the Central Library on June 30, 2026 in Denver, Colorado. Voters are deciding on candidates for Colorado Governor, US Senate and other races.

Michael Ciaglo/Getty Images

Closed Primaries Let 7% of Voters Choose 87% of Congress

Consider this wacky football scenario: What if only fans who declared their team loyalty before the game are allowed to watch the Super Bowl? Yep, unless you pick a team, you can’t get into the stadium. This is similar to how closed primary elections work, in which only registered voters of a specific political party can participate in that party's primary. That’s the brilliant analogy the Unite America Institute uses in a new, short explainer video describing the highly undemocratic system that dominates American primary elections.

“In most elections, the real contest is not the general election but the party primary held months before,” said Beth Hladick, Policy Director at Unite America. The new video is part of a year-long fellowship project: the Democracy and Public Service Initiative, a partnership between the National Academy of Public Administration and the Bridge Alliance.

Keep ReadingShow less
People attend a rally with signs that read, "Abolish ICE," and "Money out of politics."

People hold signs as Democratic Congressional candidate Brad Lander speaks during an election eve rally at Silo on June 22, 2026 in the East Williamsburg neighborhood of the Brooklyn borough in New York City.

Michael M. Santiago / Getty Images

Facts Don’t Win Elections. Stories Do.

As a student, I was taught that politics is a contest of ideas. Experience has shown me otherwise.

In a recent New York Times interview with Ezra Klein, conservative activist Chris Rufo captured this reality succinctly: “While we should have the facts on our side, and while we should use logic, by itself, it’s insufficient. Politics operates on a deeper level, an emotional level. Politics occurs on the field of sentiment and public opinion much more than on the field of abstract argumentation.”

Keep ReadingShow less