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Chris Walker

@chrisjwalker.bsky.social

Law Prof @ umich (formerly Ohio State), ABA AdLaw Section past chair, YaleJREG blogger, #adlaw nerd, dad of four https://michigan.law.umich.edu/faculty-and-scholarship/our-faculty/christopher-j-walker

5,512 Followers  |  406 Following  |  102 Posts  |  Joined: 24.06.2023  |  1.859

Latest posts by chrisjwalker.bsky.social on Bluesky


Vesting Clause Asymmetry in Justice Thomasโ€™s Learning Resources Dissent - Yale Journal on Regulation The Supreme Courtโ€™s opinion in Learning Resources, Inc. v. Trump is sure to garner countless news reports, media commentaries, and academic responses. Much of this attention will focus on Chief Justic...

My thanks to @chrisjwalker.bsky.social and the student editors of the Yale Journal on Regulation Notice and Comment blog for publishing this short discussion of Justice Thomasโ€™s dangerously executive-empowering dissent in Learning Resources, Inc. v. Trump.

www.yalejreg.com/nc/vesting-c...

25.02.2026 20:43 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
The Villanova Law Review 2026 Norman J. Shachoy Symposium, 02/20 | Villanova University This yearโ€™s Villanova Law Review Norman J. Shachoy Symposium features a series of discussions on constitutional checks and balances, focusing on how the modern executive branch shapes those checks.

Iโ€™m excited to participate in this symposium โ€œConstitutional Checks and Balances Under Trumpโ€™s Second Termโ€ on Friday!

Our panel at 1:30: Humphreyโ€™s & Appointment/Removal:
@andreascoseriakatz.bsky.social
@kexelchabot.bsky.social
@chrisjwalker.bsky.social

www.villanova.edu/university/l...

19.02.2026 15:29 โ€” ๐Ÿ‘ 6    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Stare Decisis and the Missing Administrability Inquiry <div> Administrative law is undergoing a tremendous amount of change. Presidential administrations have abandoned long-held practices and embraced new strategi

Andrew Hammond and I contributed an article from our empirical study on Auer deference after Kisor v. Wilkie, entitled Stare Decisis and the Missing Administrability Inquiry: ssrn.com/abstract=538...

01.01.2026 22:24 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
NYU Law Review Volume 100 Symposium Issue: Where Does Administrative Law Go From Here? - Yale Journal on Regulation In April 2025, the NYU Law Review and the Institute for Policy Integrity at NYU School of Law hosted a terrific symposium entitled Where Does Administrative Law Go from Here? Just before the new year,...

Hot off the press! @nyulawreview.bsky.social Volume 100 symposium issue: Where Does Administrative Law Go From Here?

Quick post linking to all of the terrific articles: www.yalejreg.com/nc/nyu-law-r...

01.01.2026 22:24 โ€” ๐Ÿ‘ 3    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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My colleagues and I studied the effect on Obama nominees alone, pre- and post- Nov 2013. We find post-filibuster: faster confirmation times, higher confirmation rates, but not a big shift to appoint more liberal nominees (plotted here). www.degruyterbrill.com/document/doi...

09.12.2025 01:50 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Definitely potential for a post-filibuster effect, but not enough presidencies per party yet to really see (e.g., for Rs, impossible to untangle filibuster end from a pure Trump effect).

09.12.2025 01:50 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Would be super fascinating to try to measure the post-filibuster effect (similar to a post-Loper Bright effect in the coming years). I wouldn't be surprised if there is already or forthcoming polisci work on this @theclboyd.bsky.social

07.12.2025 15:29 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

It's that time of year again! #GoBlue

25.11.2025 14:51 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
The Game at Michigan Law
YouTube video by Michigan Law The Game at Michigan Law

It's my fourth year teaching here at Michigan Law, and my fourth big game since moving to The School Up North. We love it here in Michigan, but our football loyalties remain unchanged. ๐Ÿค“

Time to re-up my favorite welcome video: youtu.be/jWCFaJ0tMfE?...

25.11.2025 02:28 โ€” ๐Ÿ‘ 13    ๐Ÿ” 2    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
Gray Center Podcast on Congress and the Shifting Sands in Administrative Law - Yale Journal on Regulation A couple weeks ago I recorded a Gray Matters podcast with Jace Lington, which was a lot of fun. You can give it a listen here. The C. Boyden Gray Center is such a great resource in the field of admini...

On the Gray Matters podcast, Jace Lington and I had a great conversation about Congress, separation of powers, and the future of the administrative state. Details: www.yalejreg.com/nc/gray-cent...

22.10.2025 18:57 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Registration is OPEN: Annual ABA Administrative Law Virtual Conference, November 20-21, 2025 - Yale Journal on Regulation The November 20-21, 2025 Annual ABA Administrative Law Conference registration is now open!ย  Please see the conference brochure for more information and a registration form.ย  In view of current condit...

Attn #adlaw law geeks: Registration is OPEN for Annual ABA Administrative Law Virtual Conference (11/20-11/21): www.yalejreg.com/nc/registrat...

Terrific program this year. $25 for law students; Thursday 101 programming & Friday developments panels are a great way to do a deep #adlaw dive. ๐Ÿค“

22.10.2025 18:29 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Centering Proportionality in the Administrative Procedure Act - Yale Journal on Regulation This post is part of Notice & Commentโ€™s symposium on the Senateย Post-Chevronย Working Group Report. For other posts in the series, clickย here. In this era of the rapid change in administrative lawโ€”both...

New from Professor @chrisjwalker.bsky.social in the Yale Journal on Regulation:

"Centering Proportionality in the Administrative Procedure Act"

www.yalejreg.com/nc/centering...

22.10.2025 16:39 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Ad Law Reading Room: "Remedies in the Officer Removal Cases," by Samuel Bray - Yale Journal on Regulation Todayโ€™s Ad Law Reading Room entry is โ€œRemedies in the Officer Removal Cases,โ€ by Samuel L. Bray. Here is the abstract: When a federal officer challenges her removal by the president, what forms of int...

Over at the Notice and Comment blog, today's Ad Law Reading Room entry is "Remedies in the Officer Removal Cases," by Sam Bray. Check it out! www.yalejreg.com/nc/ad-law-re...

06.10.2025 14:37 โ€” ๐Ÿ‘ 8    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Brief for Amicus Curiae Professors Michael Kagan and Christopher J. Walker in Lopez v. Garland in Support of Rehearing En Banc Amici curiae are leading scholars who write, research, and teach at the intersections of administrative law, immigration law, and civil litigation. They have cl

Here's our amicus brief: ssrn.com/abstract=503...

25.08.2025 17:44 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Here's the opinion: cdn.ca9.uscourts.gov/datastore/op...

25.08.2025 17:44 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Today the Ninth Circuit denied rehearing en banc in an important immigration case. Mike Kagan and I had filed an amicus brief urging rehearing. The panel opinion had made a mess of Loper Bright.

We did get three judges dissenting, and Judge Bumatay kindly gives our brief a shoutout in his dissent:

25.08.2025 17:44 โ€” ๐Ÿ‘ 11    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Ad Law Reading Room: "Loper Bright's Disingenuity," by Coglianese and Froomkin - Yale Journal on Regulation Todayโ€™s Ad Law Reading Room entry is โ€œLoper Brightโ€™s Disingenuity,โ€ by Cary Coglianese and David Froomkin. Here is the abstract: Loper Bright prompted a tidal wave of reaction throughout the legal com...

Over at the Notice and Comment blog, today's Ad Law Reading Room entry is "Loper Bright's Disingenuity," by @cary-coglianese.bsky.social and @dfroomkin.bsky.social. Check it out! www.yalejreg.com/nc/ad-law-re...

15.08.2025 16:29 โ€” ๐Ÿ‘ 18    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Comparative Administrative Law Scholarship Corner (August 2025) - Yale Journal on Regulation Here is the list of works included in the August 2025 Comparative Administrative Law Scholarship Corner, which is curated by Eduardo Jordรฃoย (FGV Law School, Rio de Janeiro), with the assistance of Edu...

Attn adlaw nerds: Emily Bremer's JREG Comparative Administrative Law Scholarship Corner series is terrific: www.yalejreg.com/nc/comparati...

If you're a legal scholar interested in comparative adlaw, I recommend signing up for the comp adlaw scholars listserv (link in post).

22.08.2025 15:37 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Attn law review editors: There are some excellent articles in the SSRN #adlaw reading list from last month that are apparently still looking for a home: www.yalejreg.com/nc/administr...

14.08.2025 20:04 โ€” ๐Ÿ‘ 10    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Moderating the Unitary Executive Branch in Kennedy v. Braidwood Management, by Zachary S. Price - Yale Journal on Regulation The Roberts Court has sometimes hinted at supporting a strong version of the โ€œunitary executive branchโ€ theoryโ€”one in which Presidents can personally control all executive functions.ย  The Courtโ€™s hint...

Over at the JREG Notice and Comment blog, Zach Price as a smart post entitled Moderating the Unitary Executive Branch in Kennedy v. Braidwood Management: www.yalejreg.com/nc/moderatin...

14.08.2025 19:34 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Yale Law Journal Student Essay Competition: Emerging Issues in the Executive Power - Yale Journal on Regulation From the Yale Law Journal: Theย Yale Law Journalโ€™s Ninth Annual Student Essay Competition challenges the next generation of legal scholars and practitioners to reflect on emerging legal problems. This ...

Attn adlaw profs to share with students: Yale Law Journal Student Essay Competition: Emerging Issues in the Executive Power www.yalejreg.com/nc/yale-law-...

14.08.2025 15:42 โ€” ๐Ÿ‘ 7    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Screenshot of the following text: Stare Decisis and the Missing Administrability Inquiry
New York University Law Review (forthcoming 2025)

U of Michigan Public Law Research Paper No. 25-004

40 Pages Posted: 7 Aug 2025 Last revised: 11 Aug 2025
Andrew Hammond
Indiana University Maurer School of Law

Christopher J. Walker
University of Michigan Law School

Date Written: August 06, 2025

Abstract
Administrative law is undergoing a tremendous amount of change. Presidential administrations have abandoned long-held practices and embraced new strategies to make policy through adjudication and regulation. Meanwhile, the Supreme Court has reworked foundational principles of federal administrative law including agency independence, adjudication, and legal interpretation. What does the pace and degree of change in administrative law mean for the federal courts? We posit that some answers lie in the Supreme Courtโ€™s decision in Kisor v. Wilkie and its application in the lower courts over the last five years.

In Kisor v. Wilkie, the Court was asked to reconsider its longstanding precedents concerning judicial deference to federal agenciesโ€™ interpretations of their own regulations. The result was a splintered decision that produced more questions than answers. Justice Kagan, writing for the plurality (and in parts, the Court), reaffirmed those precedents, including Auer and Seminole Rock, but also clarified and expanded the ways in which such deference should be constrained. Justice Gorsuch penned the principal opposing opinion, arguing that the Court should abandon Auer deference entirely. Chief Justice Roberts cast the deciding vote based on stare decisis, suggesting that โ€œthe

Screenshot of the following text: Stare Decisis and the Missing Administrability Inquiry New York University Law Review (forthcoming 2025) U of Michigan Public Law Research Paper No. 25-004 40 Pages Posted: 7 Aug 2025 Last revised: 11 Aug 2025 Andrew Hammond Indiana University Maurer School of Law Christopher J. Walker University of Michigan Law School Date Written: August 06, 2025 Abstract Administrative law is undergoing a tremendous amount of change. Presidential administrations have abandoned long-held practices and embraced new strategies to make policy through adjudication and regulation. Meanwhile, the Supreme Court has reworked foundational principles of federal administrative law including agency independence, adjudication, and legal interpretation. What does the pace and degree of change in administrative law mean for the federal courts? We posit that some answers lie in the Supreme Courtโ€™s decision in Kisor v. Wilkie and its application in the lower courts over the last five years. In Kisor v. Wilkie, the Court was asked to reconsider its longstanding precedents concerning judicial deference to federal agenciesโ€™ interpretations of their own regulations. The result was a splintered decision that produced more questions than answers. Justice Kagan, writing for the plurality (and in parts, the Court), reaffirmed those precedents, including Auer and Seminole Rock, but also clarified and expanded the ways in which such deference should be constrained. Justice Gorsuch penned the principal opposing opinion, arguing that the Court should abandon Auer deference entirely. Chief Justice Roberts cast the deciding vote based on stare decisis, suggesting that โ€œthe

New draft on @ssrn.bsky.social: Stare Decisis and the Missing Administrability Inquiry

By Professor @chrisjwalker.bsky.social and @andrewshammond.bsky.social (@iumaurerlaw.bsky.social)

@ssrn.bsky.social: papers.ssrn.com/sol3/papers....

12.08.2025 17:13 โ€” ๐Ÿ‘ 8    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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New to SSRN: Andrew Hammond and I have posted a draft of a symposium essay from our Kisor dataset, entitled The End of Administrative Pragmatism? This one explores how Kisor, Loper Bright, and Consumers' Research affect theories in administrative law. Link here: papers.ssrn.com/sol3/papers....

13.08.2025 20:09 โ€” ๐Ÿ‘ 10    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

For users of the Hickman, Pierce, & Walker federal admin law textbook, @chrisjwalker.bsky.social has posted the link to our summer supplement at the Notice & Comment blog. We're working on the 5th edition. Feedback from users is always welcome.

07.08.2025 17:30 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Summer 2025 Update to the Hickman-Pierce-Walker Federal Administrative Law: Cases and Materials - Yale Journal on Regulation Kristin, Dick, and I have just published the Summer 2025 Update to our federal administrative law casebook. From the introduction: Administrative law is a dynamic field, and there are always interesti...

Last week Kristin Hickman, Dick Pierce, and I finished the 2025 summer update to our federal administrative law casebook. The 5th Edition will be available next summer!

Details and link to update: www.yalejreg.com/nc/summer-20...

07.08.2025 02:26 โ€” ๐Ÿ‘ 15    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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New to SSRN: Andrew Hammond and I have posted a draft of Stare Decisis and the Missing Administrability Inquiry: papers.ssrn.com/sol3/papers.... This is the first paper from our Kisor dataset, and it includes our findings from reviewing all lower-court decisions that invoke Kisor from 2019-2024.

06.08.2025 21:28 โ€” ๐Ÿ‘ 10    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Ad Law Reading Room: "Presidential Brokering in the Regulatory State," by Nou & "The Chadha Presidency," by Chafetz - Yale Journal on Regulation Todayโ€™s Ad Law Reading Room brings two entries. The first is โ€œPresidential Brokering in the Regulatory State,โ€ forthcoming in the George Washington Law Review, by Jennifer Nou. The second is โ€œThe Chad...

Over at the Notice and Comment blog, today's Ad Law Reading Room covers two pieces: "Presidential Brokering in the Regulatory State" by @jennifernou.bsky.social and "The Chadha Presidency" by @joshchafetz.bsky.social. Check it out! www.yalejreg.com/nc/ad-law-re...

01.08.2025 16:56 โ€” ๐Ÿ‘ 8    ๐Ÿ” 7    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Shifting Attention to Internal Administrative Law in the States - Administrative Law Kevin M. Stack, The Internal Law of Democracy, 77 Vand. L. Rev. 1627 (2024).Christopher WalkerIn Vermont Yankee Nuclear Power Corp. v. NRDC, 435 U.S. 519, 524 (1978), the Supreme Court famously announ...

Over at Jotwell, I review Kevin Stack's terrific article The Internal Law of Democracy: adlaw.jotwell.com/shifting-att...

24.07.2025 14:18 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Ad Law Reading Room: "The Gray Area: Finding Implicit Delegation to Agencies after Loper Bright," by Matthew Stephenson - Yale Journal on Regulation Todayโ€™s Ad Law Reading Room entry is โ€œThe Gray Area: Finding Implicit Delegation to Agencies after Loper Bright,โ€ by Matthew Stephenson. Here is the abstract: In Loper Bright v. Raimondo, the Supreme ...

Over at the Notice and Comment blog, today's Ad Law Reading Room entry is โ€œThe Gray Area: Finding Implicit Delegation to Agencies after Loper Bright,โ€ by Matthew Stephenson. Check it out! www.yalejreg.com/nc/ad-law-re...

15.07.2025 13:05 โ€” ๐Ÿ‘ 4    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Ad Law Reading Room: "New Challenges for Federal Regulations: Executive Branch Responses," by Richard Revesz - Yale Journal on Regulation Todayโ€™s Ad Law Reading Room entry is โ€œNew Challenges for Federal Regulations: Executive Branch Responses,โ€ by Richard L. Revesz, which is forthcoming in the NYU Law Review. Here is the abstract: Over ...

Over at the Notice and Comment blog, today's Ad Law Reading Room entry is "New Challenges for Federal Regulations: Executive Branch Responses," by Richard Revesz. Check it out! www.yalejreg.com/nc/ad-law-re...

30.06.2025 16:27 โ€” ๐Ÿ‘ 3    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@chrisjwalker is following 20 prominent accounts