Mark Clayton v. William Young et al.

District Court, M.D. Tennessee·Decided February 26, 2026·No. 3:22-cv-00936·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE MIDDLE DISTRICT OF TENNESSEE NASHVILLE DIVISION

MARK CLAYTON, ) ) Plaintiff, ) ) v. ) Case No. 3:22-cv-00936 ) Judge Aleta A. Trauger WILLIAM YOUNG et al., ) ) Defendants. )

MEMORANDUM and ORDER Now before the court is the defendant’s Motion in Limine No. 1 to Exclude Expert and Reputational Damages Testimony. (Doc. No. 186.) Pursuant to the Initial Case Management Order (“ICMO”) entered in this case (Doc. No. 123), Federal Rules of Evidence 401, 402, 701, 702, 802, and 803, and Federal Rules of Civil Procedure 26 and 37, the defendant seeks to exclude any evidence and testimony relating to the contents of, and exhibits to, the Affidavits of Dr. Barbara C. Luna and Dr. William Davis Kenner (Doc. Nos. 186-1, 186-2), as well as any testimony or evidence regarding the “Reputational Cost Analysis Strategy by Edelman,” as referenced in plaintiff Mark Clayton’s Affidavit dated January 28, 2025 (“January 2025 Affidavit”) (Doc. No. 186-3). Plaintiff Mark Clayton opposes the motion. (Doc. No. 201.) For the reasons set forth herein, the motion will be granted in its entirety. I. BACKGROUND AND LEGAL STANDARDS A. The Plaintiff’s Disclosure Obligations On December 9, 2024, after having dismissed the claims against most of the originally named defendants in this lawsuit and denied at least in part the Motion to Dismiss filed on behalf of defendants William Young, Tom Lawless, and Paige Bircham-Dennis (the “Registry defendants”), the court entered the ICMO setting the dates for the progression of discovery and other pretrial matters as relevant to the claims against the three remaining Registry defendants. (Doc. No. 123.) Among other things, the ICMO required the plaintiff to identify and disclose all expert

witnesses and expert reports on or before May 30, 2025 and required the defendants to do so by June 30, 2025. (Id. ¶ H.) The staggered dates anticipated that the defendants’ decision of whether to engage experts would, to a large extent, depend on whether the plaintiff disclosed any experts. May 30, 2025, however, passed without the plaintiff’s disclosing any experts. The defendants, likewise, did not disclose any experts. Expert witness depositions were to take place by August 15, 2025. (Id. ¶ I.) Obviously, with no experts disclosed, no expert depositions were scheduled. The Order Setting Case for Trial entered basically contemporaneously with the ICMO specified that parties were to exchange witness lists and “expert witness statements as described in Local Rule 39.01(c)(5)(E)” by January 20, 2026. (Doc. No. 124 ¶ 4(a) & (d).) The plaintiff served his Witness and Exhibit List on the plaintiff on January 16, 2026,

though he did not file it until February 19, 2026. (Doc. No. 221.) This list identifies the “Affidavit/Diagnosis of William Kenner, M.D.,” the “Barbara Luna Forensic Audit of Earning Potential,” and Clayton’s January 2025 Affidavit. (Id. at 2–3 (citing Doc. No. 186-3).) Dr. William Kenner is identified as one of the plaintiff’s witnesses. Barbara Luna is not. (Id. at 3.) B. Federal Rules of Civil Procedure 26 and 37 In addition to the ICMO, Federal Rule of Civil Procedure 26 also requires the disclosure of any expert witness a party may use to present evidence at trial under Rules 702, 703, or 705 of the Federal Rules of Evidence. Fed. R. Civ. P. 26(a)(2)(A). Any witness “retained or specially employed to provide expert testimony” must also submit a written report that includes a “complete statement of all opinions” the witness expects to offer, as well as the “basis and reasons for them,” all facts or data considered by the witness in forming her opinions, supporting exhibits, the witness’s qualifications, a list of other cases in which the witness has testified as an expert, and a statement of the witness’s compensation by the party that engaged her. Fed. R. Civ. P. 26(a)(2)(B). Expert disclosures are subject to the supplementation requirement set forth in Rule 26(e).

Fed. R. Civ. P. 26(a)(2)(D). Rule 26(e) provides more specifically that a “party’s duty to supplement extends both to information included in the report and to information given during the expert’s deposition” and must be made not later than “the time the party’s pretrial disclosures under Rule 26(a)(3) are due.” Fed. R. Civ. P. 26(e). Federal Rule of Civil Procedure 37 states that a party who “fails to provide information or identify a witness as required by Rule 26(a) or (e) . . . is not allowed to use that information or witness to supply evidence . . . at trial, unless the failure was substantially justified or harmless.” Fed. R. Civ. P. 37(c)(1). C. Federal Rules of Evidence Rule 401 defines relevant evidence as evidence that “has any tendency to make a fact more or less probative than it would be without the evidence” and “is of consequence in determining the

action.” Fed. R. Civ. P. 401. As a general proposition, relevant evidence is admissible at trial; irrelevant evidence is not. Fed. R. Civ. P. 402. However, “[t]he court may exclude relevant evidence if its probative value is substantially outweighed by [the] danger of . . . unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence.” Fed. R. Civ. P. 403. Federal Rule of Evidence 702 governs the use of expert testimony. This rule states: A witness who is qualified as an expert by knowledge, skill, experience, training, or education, may testify in the form of an opinion or otherwise if: (a) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue; (b) the testimony is based on sufficient facts or data; (c) the testimony is the product of reliable principles and methods; and (d) the expert has reliably applied the principles and methods to the facts of the case. Fed. R. Evid. 702.

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Mark Clayton v. William Young et al., (M.D. Tenn. 2026).

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