MyPillow CEO's Lawyers Fined for AI-Generated Court Filing Riddled with Errors

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Attorneys representing MyPillow CEO Mike Lindell face $6,000 in fines for submitting an AI-generated legal brief containing numerous errors, including citations to non-existent cases, in a defamation lawsuit.

AI-Generated Legal Brief Leads to Sanctions

In a case that highlights the potential pitfalls of using artificial intelligence in legal practice, attorneys representing MyPillow CEO Mike Lindell have been fined $6,000 for submitting an AI-generated court filing riddled with errors. The incident occurred during a defamation lawsuit filed against Lindell by former Dominion Voting Systems executive Eric Coomer

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Source: Ars Technica

Source: Ars Technica

The Erroneous Filing and Its Consequences

U.S. District Judge Nina Wang identified nearly 30 defective citations in the brief filed on February 25, 2025. These errors ranged from misquotes of cited cases to references to non-existent legal precedents

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. Attorneys Christopher Kachouroff and Jennifer DeMaster of the law firm McSweeney Cynkar & Kachouroff were each ordered to pay $3,000 in fines

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Judge Wang ruled that the lawyers "violated Rule 11 because they were not reasonable in certifying that the claims, defenses, and other legal contentions contained in [the brief] were warranted by existing law or by a nonfrivolous argument"

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. The court found their explanation that they had accidentally filed a "prior draft" unconvincing, noting that even the purported "correct" version still contained substantive errors

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AI Usage Admission and Aftermath

When questioned about the errors, Kachouroff admitted to using AI tools in preparing the brief:

"Not initially. Initially, I did an outline for myself, and I drafted a motion, and then we ran it through AI," Kachouroff told the court

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The attorneys claimed they regularly use AI tools such as Microsoft CoPilot, Google Gemini, and X's Grok in their work

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. However, they failed to provide evidence of a correct version of the brief existing at the time of filing, leading Judge Wang to conclude that the errors resulted from either "the use of generative artificial intelligence or gross carelessness by counsel"

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Source: Mashable

Source: Mashable

Broader Implications for AI in Legal Practice

This incident is not isolated, as multiple legal professionals have been caught inappropriately using artificial intelligence in recent years

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. It serves as a cautionary tale about the risks of relying too heavily on AI in legal practice without proper verification and oversight.

The Underlying Defamation Case

The controversial brief was filed in defense of Lindell against a defamation lawsuit brought by Eric Coomer. On June 16, 2025, a jury found that Lindell had defamed Coomer and ordered him to pay over $2.3 million in damages

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. The jury determined that Lindell and his media company Frankspeech had made defamatory statements about Coomer in relation to conspiracy theories about the 2020 presidential election

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This case underscores the ongoing legal challenges faced by those who promoted unfounded claims of election fraud, as well as the potential consequences of using emerging technologies without adequate safeguards in legal proceedings.

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