
Measuring partisan gerrymandering to pave the way for #FairMaps
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Joined May 2017
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PlanScore retweeted
.@Chris_T_Kenny and @michalmigurski wrote a great API for @PlanScore in R. Enables you to easily extract a variety of data on new districting plans, including local government plans being developed now across the country. christophertkenny.com/PlanSc…
PlanScore retweeted
In today’s @washingtonpost @monkeycageblog, @hezaproject, @michalmigurski, and I show that in the most recent redistricting cycle commissions generally drew fairer and more competitive maps than politicians.
Redistricting commissions draw fairer districts than politicians do wapo.st/3BKvmTj
PlanScore retweeted
Now that redistricting is nearly done, @hezaproject, @michalmigurski, and I have a new paper forthcoming in Publius: The Journal of Federalism that provides an overview of the Congressional & state legislative districts that were drawn around the country. papers.ssrn.com/sol3/papers.…
PlanScore retweeted
Nice use of @PlanScore showing the NY maps to be almost perfectly fair. This is unalloyed good news for the state senate, though not for Congress where a fair NY map fails to offset Republican gerrymanders elsewhere.
NY redistricting special master's report can be read here: iapps.courts.state.ny.us/nys…
PlanScore retweeted
This is not acceptable. Bipartisan, independent commissions are the key to upholding our democratic institutions #redistricting
#NEW: GOP lawmakers have introduced a joint resolution to abolish the Michigan Independent Citizens Redistricting Commission. tinyurl.com/bstfcbbz
PlanScore retweeted
This is @PlanScore's evaluation of the plaintiffs' proposed NY congressional map: It's about as biased toward Republicans as the enacted plan was toward Democrats.
PlanScore retweeted
View the #PlanScore analysis of the #Kansas congressional map at the heart of this case here: planscore.campaignlegal.org/…
PlanScore retweeted
Gerrymandering: A Balanced Discussion about Unbalanced Maps. 12:45PM on 4.18. Register at hlsdemocracy.live/register. Check out who's coming ⬇️
PlanScore retweeted
Good @boltsmag article on 2022's state Supreme Court elections, which could lead to courts that green-light Republican gerrymanders in NC and OH later this decade. boltsmag.org/supreme-court-e…
PlanScore retweeted

Michael Li 李之樸@mcpli11 Feb 2022
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210 years ago today, the map that gave us the term gerrymandering became law (though the famous cartoon wouldn’t be published until March 26 - they didn’t have @davesredist or @PlanScore back then)
#OTD in #history, 1812, #Massachusetts Gov. Elbridge Gerry signed into law a senate map that sought to advantage his party. The drawing of one district was so byzantine, it resembled a salamander. Critics combined Gerry & salamander to create the popular portmanteau: gerrymander.
PlanScore retweeted
Pennsylvania Legislative Reapportionment Commission (@PaLegis) released their final approved state legislative plans last Friday - find their partisan skew analyzed across several metrics on @PlanScore's library:
planscore.campaignlegal.org/…
PlanScore retweeted
The Alabama plaintiffs made use of @vest_team data. The Virginia special masters used VEST data. The NC court calls for gerrymandering measures found on @PlanScore, which uses VEST data. Really proud to see our behind-the-scenes work over the past 4 years result in fair maps
PlanScore retweeted
.@FiveThirtyEight's description of PA's redistricting process reads like the opening crawl of a Star Wars movie, so...
starwarsintrocreator.kassell…
PlanScore retweeted
Excellent (and disturbing) analysis, using @PlanScore, showing that the severe pro-Republican biases of many state legislative maps will endure for another decade. In many ways, we're still living in the world created by the 2010 election.
pewtrusts.org/en/research-an…
PlanScore retweeted
🚨🚨🚨 My latest @PPICNotes blog, with Jennifer Paluch, evaluates CA's final redistricting plan on racial/ethnic representation and partisan outcomes. tl;dr: there's a big increase in Latino representation and a slightly stronger tilt to the Dems. 🧵 1/ ppic.org/blog/racial-represe…
PlanScore retweeted
Please copy & share this graphic. @CampaignLegal @PlanScore Partisan Bias scores for PA House across 6 decades. Compiled from @CKuniholm testimony & slides shared w LRC on Jan 6. redistricting.state.pa.us/co…
PlanScore retweeted
What does undoing gerrymandering look like? In a 50-50 election, Republicans would win nearly 62% of congressional seats under current lines drawn by GOP. Under new plan ,adopted by independent redistricting commission yesterday, they would win about 55% (via @PlanScore)
PlanScore retweeted
This is a great analysis of the current state-of-play in redistricting from @ProfNickStephan based on @PlanScore's predictive model. electionlawblog.org/?p=12652…
PlanScore retweeted
I just testified using metrics produced by @davesredist @princetongerry and @PlanScore helping the commission see that these plans are partisan gerrymanders.























