Mary Ziegler

@maryrziegler.bsky.social

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.

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

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

papers.ssrn.com

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!

Mark Joseph Stern@mjsdc.bsky.social · 9mo ago

NEW: On the shadow docket, the Supreme Court lets Trump resume misgendering trans Americans on their passports, claiming "the government is merely attesting to a historical fact without subjecting anyone to differential treatment." All three liberals dissent. www.documentcloud.org/documents/26...

This case concerns an Executive Branch policy requiring
all new passports to display an individual’s biological sex at
birth. The United States District Court for the District of
Massachusetts preliminarily enjoined the Government
from enforcing the policy, and the First Circuit declined to
stay the injunction pending appeal. The Government then

filed this stay application. Applying our familiar stay fac-
tors at this preliminary stage, we grant the application.

Displaying passport holders’ sex at birth no more offends
equal protection principles than displaying their country of
birth—in both cases, the Government is merely attesting to
a historical fact without subjecting anyone to differential
treatment. And on this record, respondents have failed to
establish that the Government’s choice to display biological
sex “lack[s] any purpose other than a bare . . . desire to
harm a politically unpopular group.” Trump v. Hawaii, 585
U. S. 667, 705 (2018) (internal quotation marks omitted).
Nor are respondents likely to prevail in arguing that the

State Department acted arbitrarily and capriciously by de-
clining to depart from Presidential rules that Congress ex-
pressly required it to follow. See 22 U. S. C. §211a.

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")

Mary Ziegler@maryrziegler.bsky.social · last yr.

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

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.”

Mary Ziegler@maryrziegler.bsky.social · last yr.

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.

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.

Lawrence Hurley@lawrencehurley.bsky.social · last yr.

BREAKING: Supreme Court upholds Tennessee ban on transgender youth medical care www.nbcnews.com/politics/sup...

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...

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.

star-telegram.com

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.

Shefali Luthra@shefali.bsky.social · last yr.

A TX bill to let private citizens sue people who mail abortion pills into the state WON'T pass after missing a key deadline. It's a loss for the state's anti-abortion movement. The bill had been cited as a possible model for other ban states. I spoke to anti-abortion activists about what's next.

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...

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...

apnews.com

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.

"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.

Alanna Vagianos@alannavagianos.bsky.social · last yr.

During today's HHS budget hearing, Hawley brought up that junk science report & asked RFK if he believes this is reason enough to restrict access to the abortion pill mifepristone. RFK: “The new data... it’s alarming & clearly it indicates that at very least that the label should be changed."

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:

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.

washingtonpost.com