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Wednesday, October 7, 2026

ChatGPT and Loper Bright Misread Chevron Footnote 11 to Have Permitted Chevron Deference Over an Opposing Best Interpretation (10/7/26; 10/8/26)

Yesterday, I posted on Loper Bright’s Cryptic Statement of Statutory Stare Decisis for Chevron Precedents – And Giving Chevron a Bad Rap (Procedurally Taxing Blog 10/6/26), here. After I posted, I asked ChatGPT Plus (hereafter just ChatGPT) the following:

This is a blog entry that I wrote today. Please re-write it to make it tighter and cite appropriate authority. [I copied and pasted the blog entry]

Yesterday evening I posted at the bottom of the blog a link to a pdf of the ChatGPT comments and re-write along with some of my comments to ChatGPT’s response. I also offer that pdf link here and the ChatGPT link is here (omitting my comments). I think one of ChatGPT’s critiques of my blog should be elevated to a separate blog because it is so important. Here is the key critique having to do with Chevron footnote 11 (note ChatGPT is speaking in the first person).

I would revise the final argument about Chevron. Chevron itself, especially footnote 11, expressly contemplated upholding an agency interpretation even when it was not the interpretation the court independently would have selected. Your stronger empirical point is that this theoretical feature of Chevron should not be confused with proof that courts actually and frequently rejected what they regarded as the best interpretation in favor of an inferior agency interpretation. Barnett and Walker do not establish that proposition.

Back to JAT speaking for myself in the first person:

1. The key point I [JAT] was making was that Chevron required ambiguity where a court could determine only that competing interpretations were in the zone of ambiguity of the statutory text but could not determine which interpretation is best. So, with that point (which really when carefully considered covers the rest of my analysis), here is the rest:

2. ChatGPT Plus rightly points out that Chevron footnote 11 said: “The court need not conclude that the agency construction was the only one it permissibly could have adopted to uphold the construction, or even the reading the court would have reached if the question initially had arisen in a judicial proceeding.” (467 U.S., at 843 n. 11.) My problem is that, in the Chevron text to which that footnote applies, the Court says and I repeat the text and footnote to contextualize (I bold-face key words)

Tuesday, October 6, 2026

Loper Bright’s Cryptic Statement of Statutory Stare Decisis for Chevron Precedents – And Giving Chevron a Bad Rap (10/6/26)

I have just reviewed Eli Nachmany, Deference Undisturbed, 101 Notre Dame L. Rev. 985 (2026), on SSRN here. The author focuses on the rather cryptic discussion of statutory stare decisis in the Opinion of the Court (C.J. Roberts) in Loper Bright Enterprises v. Raimondo, 603 U.S. 369 , 412 (2024), here [Preliminary Print]:

By doing so [leaving deference behind in Loper Bright], we do not call into question prior cases that relied on the Chevron framework. The holdings of those cases that specific agency actions are lawful—including the Clean Air Act holding of Chevron itself—are still subject to statutory stare decisis despite our change in interpretive methodology.

The actual holding of Loper Bright was that, going forward, courts must interpret statutes in agency interpretation cases de novo rather than deferring to agency interpretations as Chevron (and, really, Chevron predecessors dating to before the APA) allegedly allowed. Loper Bright's cryptic discussion of statutory stare decisis is dictum rather than a holding and seems to be something textualists often claim to avoid—permitting consequences of the interpretation to affect the interpretation of the text that, under their claimed textual preference looks only to the text, the whole text, and nothing but the text. (As Justice Kagan famously noted, textualists find a way to avoid text when they choose to, using the Major Questions Doctrine, for example, as a “get out of text free” card. West Virginia v. EPA, 597 U.S. 697, 779 (2022) (Kagan, J., dissenting).)

No one can doubt the disruption to a host of precedential statutory interpretations that would occur if Chevron deference could be litigated anew based on Loper Bright. As Nachmany discusses in the article (p. 1010), that cryptic statement was to stem the tide of the disruptive possibility.

Of course, the statement in Loper Bright is cryptic, offering nothing that helps courts in the future decide which precedents are entitled to statutory stare decisis and which are not. Perhaps it may be like pornography: courts will know it when they see it. See Jacobellis v. Ohio, 378 U.S. 184, 197 n. 2  (1964) (J. Stewart, concurring).

I discuss statutory stare decisis in my article. John A. Townsend, Loper Bright Flip Flops on Chevron Deference: A Tax Lawyer's Perspective, 79 Tax Law. 323, 391-397 (2026), SSRN here. In this posting, I offer some discussion that is in more cryptic in my article but inspired now by Nachmany’s article.

The issue that concerns me is to identify the holding of the opinion a court would use for precedent. I do not address the issue of what levels of precedent Loper Bright means its statement to apply (e.g., Supreme Court, Circuit Courts, or trial courts). At a minimum, everyone should recognize that Supreme Court adoption of agency interpretations under Chevron are precedential opinions for all judges to which the cryptic statement in Loper Bright might apply.

One thing that is certain is that the Loper Bright cryptic statement requires that the precedent in question have applied Chevron deference. I illustrate with two examples.

Example 1. The prior opinion noised about Chevron but when read fairly applied the agency interpretation as the best interpretation rather than deferring to it over an opposing best interpretation. This is a Chevron Step One case. Sometimes teasing out from the prior opinions the real basis for the holding can be difficult, but courts having the claimed facility for statutory interpretation should have some skills for interpreting potentially precedential opinions. (In this context the prior opinion is the law requiring interpretation.) As I discuss in my article, many opinions, perhaps a majority, that some view as Chevron cases really are not when analyzed closely because they found the agency interpretation the best. (See discussion in the article at 339-341, particularly at nn. 62-63.) Also, I have previously reported on significant data sets of Courts of Appeals “Chevron” holdings identified by others and found that clear Chevron holdings were rare and some likely approved best agency interpretations even though they noised about Chevron. Chevron Step Two Reasonableness and Agency Best Interpretations in Courts of Appeals (Federal Tax Procedure Blog 2/9/23), here; and Is Chevron on Life Support; Does It Matter? (Federal Tax Procedure Blog 4/2/22; 4/3/22), here. (Focus in each blog on Category 5.) This type of precedent should clearly qualify for statutory stare decisis as to the holdings that (i) the statute is not ambiguous and (ii) the agency interpretation is the best interpretation. These cases are not Chevron cases.

Saturday, October 3, 2026

Adventures in AI and Federal Tax Procedure on § 7434 (10/3/26)

Today, I was reviewing a recent decision from the Seventh Circuit: Jacoby v. Idlewild Country Club, No. 25-1608 (7th Cir. Oct. 2, 2026) (nonprecedential disposition), CA7 here and TN here, and added it to a footnote in the § 7434 discussion in my working draft for the 2027 edition (to be published in early August 2027). Since I am trying to develop some skills in AI (even though I have not mastered my own intelligence, if any), I decided to use the § 7434 discussion with revisions to date to test what AI has to offer. I used ChatGPT Plus (a paid version). The results offered may be viewed here. I then took the version as ChatGPT rewrote it, pasted it into WordPerfect (my word processor of choice because I am an old lawyer who has not learned MS tricks), and then refined ChatGPT Plus’s offering. So, the files relevant to this exercise are:

  1. The version submitted to ChatGPT Plus from the working draft for 2026. Here. This version has 4,750 words (per WP word count). The red font text indicate revisions in the working draft from the 2026 editions.
  2. The version ChatGPT Plus offered (with the proposed footnotes as endnotes). Here. This version has 6,079 words (per WP word count).
  3. My changes to the ChatGPT Plus that I have not decided whether to replace in the 2027 edition. Here. This version has 6,757 words (per WP word count).

I think each version has the same information as presented in the original from the 2027 working draft (¶ 1).

I would appreciate those having the interest to give me feedback as to which versions are better and more specifically if the two revised versions (¶ 2 and 3 above) are better in the sense of how they better convey the information in the original version (¶ 1) and are worth the additional words to convey the information.