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Mary Ziegler

@maryrziegler.bsky.social
15K followers 322 following 99 posts

Historian, Law Professor, Guggenheim Fellow, 7 books, including Personhood and Roe: The History of a National Obsession. Bylines in the NYT, Atlantic, CNN, MSNBC, and Slate.

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Mary Ziegler @maryrziegler.bsky.social · 01/09/2026
Important reporting from @jodikantor.bsky.social on when--if at all--we'll have access to full records of what really happened in the Roberts Court: www.nytimes.com/2026/09/01/u...
nytimes.com
How the Supreme Court Locks Away Its Own History
After Justice Scalia died, the justices held private negotiations about locking away their papers. We may not see the ultimate record of the Roberts court for decades.
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Mary Ziegler @maryrziegler.bsky.social · 17/08/2026
The most recent episode of Last Week Tonight with John Oliver featured a discussion of fetal personhood--and a cameo from my book! It's an important issue, and so I hope you get a chance to watch. www.youtube.com/watch?v=sCSt...
youtube.com
Fetal Personhood: Last Week Tonight with John Oliver (HBO)
YouTube video by LastWeekTonight
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Mary Ziegler @maryrziegler.bsky.social · 28/07/2026
Within weeks of SCOTUS's B.P.J. decision, Heritage called Title IX "feminist social engineering" and called for its overhaul. Reva Siegel and I revised our forthcoming piece in the Tx. L. Rev. to make sense of B.P.J. and what's going on: papers.ssrn.com/sol3/papers.... balkin.blogspot.com
papers.ssrn.com
Dismantling Equality Rights Through "Biological-Sex" Talk
<p><span>In rejecting the sex-discrimination claims of transgender youth seeking gender-affirming care in <i>United States v. Skrmetti</i> (2025) and transgende
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Mary Ziegler @maryrziegler.bsky.social · 20/05/2026
What we can learn about the mifepristone struggle from what has happened so far? Reva Siegel and I shared our thoughts in Slate: slate.com/news-and-pol...
slate.com
Is the Supreme Court’s Abortion Pill Ruling Actually a Feint?
Last week the Supreme Court temporarily ended the latest crisis around mifepristone. Don't be fooled.
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Mary Ziegler @maryrziegler.bsky.social · 27/04/2026
Reva Siegel and I have posted our latest on SSRN, which is forthcoming in the Texas Law Review. Comments welcome as we revise! papers.ssrn.com/sol3/papers....
papers.ssrn.com
Dismantling Equality Rights Through "Biological-Sex" Talk
In rejecting the sex-discrimination claims of transgender claimants in <i>United States v. Skrmetti</i> (2025), the Supreme Court introduced a new ter
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Mary Ziegler @maryrziegler.bsky.social · 31/03/2026
So honored to be 1 of 2 recipients of the 2d annual Organization of American Historians Prize for Contributions to Public Policy, which recognizes scholars who have made "a significant contribution to U.S. public policy through historical research." Learn more here: www.oah.org/2026/03/26/o....
oah.org
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Mary Ziegler @maryrziegler.bsky.social · 15/03/2026
This book is a must-read, with deep insight into some of the most important--and often unknown--players in the story of the fall of Roe. Congrats to @amylittlefield.bsky.social on an important book!
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Mary Ziegler @maryrziegler.bsky.social · 06/03/2026
Happy to share my latest with @naomicahn.bsky.social and @maxineeichner.bsky.social on Mahmoud, forthcoming in the Duke Law Journal and now on SSRN: papers.ssrn.com/sol3/papers....
papers.ssrn.com
Opting Out: <i>Mahmoud</i>, Public Education, and the Future of Parental Rights
<p>In last summer’s earth-shaking opinion in Mahmoud v. Taylor, the Supreme Court held that the Free Exercise Clause protects parents’ freedom to opt their chil
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Mary Ziegler @maryrziegler.bsky.social · 06/03/2026
And when you are done, read this important piece by @greerdonley.bsky.social and Chip Carter on originalism and personhood: papers.ssrn.com/sol3/papers....
papers.ssrn.com
An Originalist Critique of Fetal Personhood
The current “North Star” in the antiabortion movement is fetal personhood: a declaration by judicial fiat that conception marks the beginning of constitutional
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Mary Ziegler @maryrziegler.bsky.social · 06/03/2026
On X, Josh Craddock is posting his critique of Reva Siegel's article on the weaknesses of arguments about fetal personhood: papers.ssrn.com/sol3/papers.... Read both papers and decide for yourself. :)
papers.ssrn.com
It's Alive! When the Original Meaning of "Person" Protected by the Fourteenth Amendment Is Not a Fixed, But Living Word
This Article examines an originalist argument for prenatal personhood—that life from conception is included within the original public meaning of the “person” t
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Mary Ziegler @maryrziegler.bsky.social · 23/01/2026
Curious what's to come for state ballot initiative battles in 2026? Check out my latest for the Brennan Institute: statecourtreport.org/our-work/ana...
statecourtreport.org
2026 Abortion-Related Ballot Measures
Ballot measures continue to be a tool in the fight over abortion rights, with some states attempting to expand rights and others looking to shore up restrictions.
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Mary Ziegler @maryrziegler.bsky.social · 06/11/2025
Writing a piece on the history and current use of the idea of "biological sex" with Reva Siegel now--check out what it's doing below. The idea is playing a major role in these cases--and in the Court's potential rethinking of sex discrimination writ large. Stay tuned for more on that!
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Mary Ziegler @maryrziegler.bsky.social · 01/10/2025
This will also delay resolution of the issue, which may suit the Trump Administration, while leaving open the possibility that the judge to whom the case is transferred will buy the arguments about the Comstock Act and FDA authority.
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Mary Ziegler @maryrziegler.bsky.social · 23/07/2025
Two more important things: 1) this suit is meant to get a federal court to finally interpret the Comstock Act as a ban/ force a response from SCOTUS and Trump; 2) it reinforces arguments for fetal personhood (note that is a class action on behalf of all "fathers of unborn children")
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Mary Ziegler @maryrziegler.bsky.social · 23/07/2025
We were long promised that cross-border wars over abortion would center on wrongful death suits brought by men. This may be the start, in a suit filed by Jonathan Mitchell. Why is this a big deal? It may feel like it's not because the TX state suit and Louisiana prosecution didn't go anywhere. /1
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Mary Ziegler @maryrziegler.bsky.social · 26/06/2025
Medina on its own will likely harder for plaintiffs to enforce other civil rights in federal court. And as far as reproductive health is concerned, this case could be part of a one-two punch if Trump's Big Beautiful Bill passes.
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Mary Ziegler @maryrziegler.bsky.social · 18/06/2025
Skrmetti caps off decades of movement work to rethink sex discrimination jurisprudence across the board. The goal was to ensure law could regulate based on biological difference, broadly defined --as one ADF attorney explained, to show that “one cannot deny the reality of biological sex.”
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Mary Ziegler @maryrziegler.bsky.social · 18/06/2025
Look at how much work the Court's abortion cases do here. The majority cites Dobbs to say that regulating a medical condition/procedure isn't sex discrimination, and another abortion case, Gonzales v. Carhart, to suggest that legislatures deserve discretion when there is scientific uncertainty.
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Mary Ziegler @maryrziegler.bsky.social · 09/06/2025
Striking story: a man accused of putting abortion pills into his girlfriend's drink without her consent is being charged not with criminal abortion or reproductive coercion but with capital murder in Texas. A test for personhood politics in the state. www.star-telegram.com/news/local/c...
star-telegram.com
North Texas man accused of slipping abortion drug in pregnant girlfriend’s drink
A U.S. Department of Justice employee faces charges including capital murder after investigators say he forced an abortion by sneaking medication into a woman’s coffee.
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Mary Ziegler @maryrziegler.bsky.social · 04/06/2025
The strategy in this case, involving what movement members call a guardian for the unborn, has been a defining strategy for fetal personhood since the 1960s. There are more federal personhood cases in the pipeline like this one in MN: www.mprnews.org/story/2024/1...
mprnews.org
Lawsuit challenges Minnesota abortion access in federal court
Minnesota has some of the most accommodating laws granting access to abortion. A lawsuit filed late last week seeks to upend them.
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Mary Ziegler @maryrziegler.bsky.social · 03/06/2025
Today, the Trump Admin issued this on EMTALA. What does it mean? www.cms.gov/newsroom/pre...
cms.gov
CMS Statement on Emergency Medical Treatment and Labor Act (EMTALA) | CMS
The Department of Health and Human Services and Centers for Medicare & Medicaid Services (“CMS”) are rescinding July 2022 guidance from CMS with the subject “Reinforcement of EMTALA Obligations specif...
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Mary Ziegler @maryrziegler.bsky.social · 28/05/2025
The study designed to give Trump a chance to revisit the rules governing mifepristone wasn't isolated. Here's the sequel; we'll see if it prompts HHS to end telehealth access. lozierinstitute.org/the-origins-...
lozierinstitute.org
The Origins and Proliferation of Unfounded Comparisons Regarding the Safety of Mifepristone - Lozier Institute
Abstract As part of the substantial public discourse surrounding the distribution and use of mifepristone, which is used with misoprostol to facilitate drug-induced abortions, claims comparing the saf...
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Mary Ziegler @maryrziegler.bsky.social · 28/05/2025
Anyone have a copy of the MO Supreme Court order from yesterday, and Judge Zhang's February ruling? The MO courts page seems to be down?
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Mary Ziegler @maryrziegler.bsky.social · 27/05/2025
Huge news. This bill was heralded as a model for other states. My guess is that it was taken down by its language blocking state courts from ruling on its constitutionality. Don't be surprised if many of these proposals are back, in TX and elsewhere, minus that idea.
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Julie Rovner @julierovner.bsky.social · 23/05/2025
worth the wait - this week's #WTHealth podcast! With @alicemiranda.bsky.social, @annaedney.bsky.social, and @sarahkarlin-smith.bsky.social, plus @maryrziegler.bsky.social on her new personhood book! kffhealthnews.org/news/podcast...
kffhealthnews.org
Bill With Billions in Health Program Cuts Passes House - KFF Health News
The House narrowly passed a budget reconciliation bill, including billions of dollars in tax cuts for the wealthy along with billions of dollars in cuts to health program spending. But the Senate is e...
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Mary Ziegler @maryrziegler.bsky.social · 19/05/2025
The GA AG claims that Adriana Smith doesn't have to be kept on life support because taking her off wouldn't qualify as a "direct abortion" and violate the state's ban. But that's wrong because GA's law is a *fetal personhood* law. Want to learn more? I have a book! www.amazon.com/Personhood-N...
amazon.com
Personhood: The New Civil War over Reproduction
Personhood: The New Civil War over Reproduction [Ziegler, Mary] on Amazon.com. *FREE* shipping on qualifying offers. Personhood: The New Civil War over Reproduction
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Mary Ziegler @maryrziegler.bsky.social · 19/05/2025
AP's reporting on GA may confuse readers. It says pro-lifers are divided on personhood bills. That's true of bills authorizing punishment of women but NOT of the idea of personhood, which is what is driving events in Georgia. This isn't an outlier. apnews.com/article/preg...
apnews.com
Case of brain-dead pregnant woman kept on life support in Georgia raises tricky questions
The case of a pregnant woman in Georgia who was declared brain dead and has been on life support for three months has given rise to complicated questions about abortion law and whether a fetus is a pe...
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Steve Vladeck @stevevladeck.bsky.social · 15/05/2025
To be clear, it’s not that there are five votes to *uphold* Trump’s patently unlawful and unconstitutional limits on birthright citizenship; it’s that there seem to be five votes to hold that district courts can grant relief only to plaintiffs—so the policy would go into effect against all others.
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Mary Ziegler @maryrziegler.bsky.social · 15/05/2025
"Investigation" into mifepristone has been a defining policy. At first, this was a way to buy time, given that the abortion issue hurts Republicans. Now it looks like political cover. Trump's past talk of state's rights will be portrayed as sincere; he will say that new data have changed his mind.
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Mary Ziegler @maryrziegler.bsky.social · 08/05/2025
Wow--honored that @npr picked Personhood as the book of the day. www.npr.org/2025/05/08/1... You can pick up a copy here: www.amazon.com/Personhood-N...
npr.org
'Personhood' argues fetal rights are the next frontier of the anti-abortion movement : NPR's Book of the Day
Mary Ziegler is a law professor at UC Davis and a leading scholar on the abortion debate. In her new book Personhood, she argues that the anti-abortion movement's ultimate goal is fetal personhood, wh...
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Mary Ziegler @maryrziegler.bsky.social · 06/05/2025
Want to make sense of the Trump filing yesterday? Remember it says nothing about FDA approval of mifepristone or whether the Comstock Act is an abortion ban. Trump is giving himself room to do whatever he wants on mifepristone on his own timeline. And one more thing:
washingtonpost.com
Column | Three years after Dobbs leak, abortion no longer dominates politics
In Trump 2.0, reproductive rights is not the most central issue galvanizing voters, leaving Democrats searching for a winning message.
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Mary Ziegler @maryrziegler.bsky.social · 05/05/2025
Today, in a huge case on mifepristone, the Trump Administration filed a brief arguing that the state plaintiffs couldn't satisfy venue requirements in Amarillo & don't have standing. litigationtracker.law.georgetown.edu/wp-content/u... What does it mean?
litigationtracker.law.georgetown.edu
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Mary Ziegler @maryrziegler.bsky.social · 04/05/2025
Thanks to @velshimsnbc.bsky.social for the chance to talk about fetal personhood and my new book, Personhood. Here's a link to the New Yorker review: www.newyorker.com/magazine/202... You can pick up a copy here or at your bookstore: www.amazon.com/Personhood-N...
newyorker.com
Does a Fetus Have Constitutional Rights?
After Dobbs, fetal personhood has become the anti-abortion movement’s new objective.
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Mary Ziegler @maryrziegler.bsky.social · 04/05/2025
Looking forward to joining @velshi.com on @velshimsnbc.bsky.social to talk about Personhood. Hope you can listen!
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State Court Report @statecourtreport.org · 24/04/2025
NEW: The US anti-abortion movement's ultimate goal was never just overturning Roe v. Wade. Since its inception, it has always been a fetal-personhood movement. Check out an excerpt from @maryrziegler.bsky.social's new book, "Personhood: The New Civil War over Reproduction."
statecourtreport.org
Book Excerpt: “Personhood: The New Civil War over Reproduction,” by Mary Ziegler
The fetal personhood movement already succeeded in eliminating what many viewed as a fundamental right. Its continued effects could be even further-reaching.
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Mary Ziegler @maryrziegler.bsky.social · 25/04/2025
Thanks to @hereandnow.bsky.social for featuring Personhood today, and to @tizianadearing.bsky.social for a wonderful conversation. Hope you enjoy reading! www.wbur.org/hereandnow/2... www.amazon.com/Personhood-N...
wbur.org
How 'personhood' has fueled a 'civil war over reproduction'
When the Supreme Court overturned Roe v. Wade in 2022, that was only the beginning for some anti-abortion activists.
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Mary Ziegler @maryrziegler.bsky.social · 23/04/2025
Excited to join @kqedforum.bsky.social tomorrow to talk about Personhood one day after the pub date. Hope you can listen and read the book!
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Mary Ziegler @maryrziegler.bsky.social · 22/04/2025
Personhood is out today! Thanks to the amazing @amylittlefield.bsky.social for this conversation about the book. You can pick up a copy of the book here: bookshop.org/p/books/pers... or on Amazon: www.amazon.com/Personhood-N...
bookshop.org
Personhood: The New Civil War Over Reproduction
The New Civil War Over Reproduction
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Mary Ziegler @maryrziegler.bsky.social · 21/04/2025
Thanks to @slate.com for posting an edited excerpt from Personhood a day out from the publication date. You can read it here: slate.com/news-and-pol...
slate.com
The Real Supreme Court Endgame for Abortion Foes
If history teaches us anything, it is that Dobbs is just the beginning.
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Mary Ziegler @maryrziegler.bsky.social · 21/04/2025
Looking forward to joining 1A on @npr to talk about my new book, Personhood, (which is out tomorrow!) and the coming battles over IVF and abortion this year and the rest of the Trump Administration. Hope you can listen.
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Dahlia Lithwick @dahlialithwick.bsky.social · 19/04/2025
Great big books-slash-current events double header show. @mjsdc.bsky.social and @leahlitman.bsky.social preview her incredible new book, Lawless. Then @maryrziegler.bsky.social and I catch up on abortion wars and personhood, tagged to her new book Personhood.
slate.com
Federal Judges Are Ringing the Alarm Over Stephen Miller’s Illegal Deportation Scheme
Stephen Miller isn’t actually a lawyer, he just plays one on TV.
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Mary Ziegler @maryrziegler.bsky.social · 17/04/2025
Thanks @nytimes.com for featuring Personhood in the list of recently published books to watch in today's print edition. "Ziegler, a leading historian of abortion, looks beyond Roe v. Wade to the future battleground for reproductive rights." You can pre-order here: buff.ly/V6YwuE
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Mary Ziegler @maryrziegler.bsky.social · 16/04/2025
Thanks @womenknowlaw.bsky.social! Looking forward to talking about the book a bunch of places soon, starting with a conversation with @dahlialithwick.bsky.social on Amicus this coming Saturday.
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Mary Ziegler @maryrziegler.bsky.social · 14/04/2025
If you want a copy, wany or to listen to the audio book, here are a few links: www.amazon.com/Personhood-N... yalebooks.yale.edu/book/9780300...
amazon.com
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Mary Ziegler @maryrziegler.bsky.social · 14/04/2025
My new book, Personhood, is out a week from tomorrow. Thanks to Margaret Talbot for this generous @newyorker.com review. Hope you enjoy the book! www.newyorker.com/magazine/202...
newyorker.com
Does a Fetus Have Constitutional Rights?
After Dobbs, fetal personhood has become the anti-abortion movement’s new objective.
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Mary Ziegler @maryrziegler.bsky.social · 04/04/2025
Worth watching this suit. It argues that MN's repro rights law violates women's constitutional parental rights w/ an unborn child. It relies on arguments about abortion coercion--a major movement strategy--and could be the way fetal personhood gets to SCOTUS. stopcoercedabortions.com#blank-3
stopcoercedabortions.com
Home
Historic lawsuit exposes government collusion with the abortion industry, fights to end forced and uninformed abortions, and demands justice to restore mothers’ constitutional rights.
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Mary Ziegler @maryrziegler.bsky.social · 01/04/2025
Major ruling yesterday. The next round of conflict about abortion will be about speech/conflicts of law too. State AGs argue that they are simply punishing crime-facilitating speech, which doesn't get protection. But who gets to define what is a crime, esp if an abortion is legal where it occurs.
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Mary Ziegler @maryrziegler.bsky.social · 27/03/2025
Lest there be any doubt that this case against Dr. Margaret Carpenter is ending up at SCOTUS, I don't there should be anymore. The first of what is likely to be many cross-border conflicts about abortion: www.nytimes.com/2025/03/27/h...
nytimes.com
New York County Clerk Blocks Texas Court Filing Against Doctor Over Abortion Pills
The showdown catapults the interstate abortion wars to a new level.
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Mary Ziegler @maryrziegler.bsky.social · 24/03/2025
Thanks to @lsolum.bsky.social for highly recommending my new piece with Dov Fox, which is forthcoming in the @columlrev.bsky.social. We're not just editing but also writing a book on IVF's story, and so welcome comments. lsolum.typepad.com/legaltheory/...
lsolum.typepad.com
Fox & Ziegler on In Vitro Fertilization after Dobbs
Dov Fox (University of San Diego: School of Law) & Mary Ziegler (University of California, Davis - School of Law) have posted The New Abortion (Columbia Law Review, Vol. 126 (forthcoming 2025)) on SSR...
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Mary Ziegler @maryrziegler.bsky.social · 18/03/2025
More of my thoughts on what's going on with Texas's seemingly first-of-its-kind post-Roe prosecution.
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