We can hardly think of a more useful recent law review article than D. Capra & L. Richter, “The Difference a Year Makes: The Admissibility of Expert Opinion Testimony under the 2023 Amendment to Federal Rule of Evidence 702,” 111 Cornell L. Rev. 127 (2026). Here is an online link. The authors are affiliated with the Advisory Committee on Evidence Rules, so their qualifications are not in doubt. Neither is their methodology. The article offers “an insider’s account of the process and thinking that generated the 2023 amendment to Rule 702.” Interestingly, we learn that a catalyst behind the amendment was a broad concern that forensic expert opinions in criminal cases (e.g., feature comparisons, such as fingerprints) were being presented with a degree of certainty that outstretched scientific support. Then the project became both sharper and broader.
The “long journey to the 2023 amendment” included some false starts and blind alleys. The Advisory Committee considered directly calling out court decisions that had misapplied Rule 702, but ultimately decided against it. As the article points out, it is hardly surprising that so many courts misapplied the gatekeeping role, because Daubert “offered litigants a potpourri of pronouncements regarding a trial court’s evaluation of expert opinion testimony. There is language in Daubert for everyone.” In any event, we eventually got the amendment, which provided necessary clarification of the proponent’s burden of proving that the expert’s testimony more likely than not met the 702 requirements, and that the trial court must gatekeep against insufficient factual bases and errant applications of the purported methodology.
The article then reviews every Rule 702 decision in the first year after the 2023 amendments. This is the part of the article you will want to keep close at hand in your office the next time you are briefing a Rule 702 motion.
While finding some progress, the article laments that litigants and courts continue to rely on the “antiquated” Daubert opinion (now superseded by two Rule amendments) and/or Rule 702 opinions that predate and are not compatible with the 2023 amendments. Some courts “remain mired in the mixed messages of the now-dated Daubert opinion and risk admitting unreliable expert opinion testimony that threatens to alter outcomes of criminal and civil actions in federal court.”
The article contains a detailed examination and critique of hundreds of Rule 702 opinions. A pie chart shows 801 cases sorted into helpful categories. The article offers an interesting taxonomy of judicial attitudes toward amended Rule 702, including “Who, Me? Courts that Need No Correction,” “Old Habits Die Screaming: Federal Courts that Cannot Let Go of the Erroneous Tropes about ‘Liberal’ Admissibility,” and “Ignorance is not Bliss: Federal Courts that have Failed to Recognize the 2023 Amendment.” We feel we have encountered entirely too many courts in those last two categories. Too many courts still rely on “tropes” like “liberal thrust,” “presumption” of admissibility, and “questions of weight not admissibility,” “shaky opinions” and cross-examination that are no longer part of the rule.
The article makes the key point that Rule 702 is not “synonymous” with Daubert. Too many courts have failed to acknowledge the 2023 amendments at all. Fifty-six opinions did not even cite the current language of Rule 702, but only the “defunct” prior version. The authors express regret that the Advisory Committee failed to reject these “tropes” specifically. The Committee “incorrectly” thought that courts would reach the proper conclusions themselves. But some courts did arrive at proper conclusions. Here is one of our favorite examples (not surprising given our Pennsylvania/Third Circuit focus): “The trial court in Knight v. Avco Corp. noted that Third Circuit precedent instructing that the Rule 702 standard is ‘not that high’ and that ‘the reliability and believability of expert testimony … is exclusively for the jury to decide’ was inconsistent with the preponderance requirement subsequently added to the Rule in 2023.” Just so.
A tone of exasperation creeps into the article. “The potential futility of painstaking efforts to lead horses to water is the rule makers’ lament. And the multitude of federal opinions that have failed to recognize the 2023 amendment to Rule 702, or that have flagrantly ignored its clear mandate, is disheartening to say the least.” More and better judicial education is recommended. It would also be helpful to get the citation services to red-flag Daubert as being superseded by Rule 702 amendments. Counsel also need to get rid of outdated precedent in their motions and briefs. “[T]here were a stunning 316 cases in the year following the amendment to Rule 702 in which both the lawyers and the court were seemingly in the dark about the important amendment.”
With the help of this article, and your briefing, that darkness can be dispelled.





