Gonzalez v. Texas Taxpayers and Research Association
U.S. District Court, Western District of Texas · W.D. Tex. · Texas bar guidance
Verified May 14, 2026
- Citation
- Gonzalez v. Texas Taxpayers and Research Association, No. 1:24-cv-00880 (W.D. Tex. Jan. 29, 2025)
- Decided
- January 29, 2025
Summary
Plaintiff's counsel John L. Pittman III filed a response in opposition to a motion to dismiss containing nonexistent case citations purportedly from the D.C. Circuit and the Southern District of Texas. After the defendant moved to strike, U.S. District Judge Robert Pitman granted the motion, struck the response, and imposed monetary sanctions. Counsel attributed the fabricated authorities to research conducted with Lexis Nexis AI without independent verification.
- AI tool:
- Lexis Nexis AI
- Sanction amount:
- $3,961
What sanction did the court impose?
The court struck plaintiff's response in opposition to the motion to dismiss and ordered counsel to pay $3,961 in monetary sanctions covering the defendant's fees incurred in identifying the fabricated authorities and briefing the motion to strike.
Why does Gonzalez v. Texas Taxpayers and Research Association matter for law firms using AI?
Gonzalez illustrates the failure mode that vendor-marketed legal AI tools were meant to prevent. Counsel relied on Lexis Nexis AI, a product positioned as hallucination-resistant for legal research, yet still filed a brief with fabricated authorities from two distinct federal courts. For managing partners, the case underscores that “AI-assisted legal research” branding does not substitute for citation verification, and that workflow controls must apply uniformly regardless of which research tool generated the cite.
Sources
Primary sources
Further reading
- https://www.pacermonitor.com/public/case/54569798/Gonzalez_v_Texas_Taxpayers_and_Research_Association
- Document mirror (Damien Charlotin hallucination database, Westlaw printout)
Source PDF is a Westlaw printout mirrored from the Damien Charlotin hallucination database. We are working to add the underlying court docket (PACER, CourtListener, or court website) as a second source.