The GB News presenter, who was the party’s candidate in the recent Gorton and Denton by-election, released Suicide of a Nation: Immigration, Islam, Identity last week.

The book claims to be a “story of how Britain, one of the most remarkable countries on earth, is not just in decline but is committing national suicide”.

Goodwin claims that mass uncontrolled immigration is contributing to “not just the transformation of a country and a people but their very replacement”.

But it has been discovered the one-time academic has used ChatGPT to write some of the book, which he has defended.

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On social media, several footnotes from the book have been shared by writer John Merrick which cite the AI chat bot.

Sharing the evidence, he posted on Twitter/X: “Got to say, if the research of Goodwin’s book was conducted mainly by AI, then he’s done a terrible job of hiding it.”

Left-wing commentator Andy Twelves also said on X that AI hallucinations appeared in the book.

EXC: .@GoodwinMJ’s new book “Suicide of a Nation: Immigration, Islam, Identity” is out now, and I’m only 5 chapters in and have found a huge amount of what appears to be false quotes and basic misinterpretations of data, that appear to be AI hallucinations.

Matthew, can you… pic.twitter.com/f8jKmiOLqB

— andy twelves (@andytwelves) March 22, 2026

He said: “I’m only 5 chapters in and have found a huge amount of what appears to be false quotes and basic misinterpretations of data, that appear to be AI hallucinations.

“Matthew, can you explain the claims you made in the book that I’ve outlined in the below thread?”

One of the claims Twelves questions is Goodwin claiming that in a year one classroom in Bradford, “only four of 28 pupils spoke English as their first language”.

It goes on to say teachers “report spending large amounts of time simply mediating between dozens of languages, making normal teaching almost impossible and slowing down the rate of progress for everybody”.

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Twelves said he could not find any evidence of this claim in any news reports or on Goodwin’s own X page.

He cites several other passages of the book which he claims have no basis or appear to be adaptations of quotes or information.

A response to my critics.

Suicide of a Nation is clearly becoming a major book & I’m DELIGHTED by the debate it’s sparked.

This is why I wrote it. People deserve to know the truth about what is happening in their own country.

I also find myself in the curious position of… pic.twitter.com/cHqkMhvQpM

— Matt Goodwin (@GoodwinMJ) March 23, 2026

In response to his critics, Goodwin posted a large thread on X defending his use of AI saying: “I see no issue obtaining datasets via AI so long as they are cross-checked with the original source.”

Goodwin lost out to the Green Party’s Hannah Spencer in the by-election last month after escaping a sanction for a breach of election rules.

Lawyers for Goodwin and his election agent, Adam Rawlinson, told the High Court that some of Goodwin’s election leaflets failed to include a “statutory imprint”, which constituted “inadvertent illegal practice”.

In a ruling, Justice Butcher said he was “satisfied” that the pair should not be sanctioned for the rule breach and had taken “appropriate steps to put it right”.

Reform were branded “the UK’s worst losers” after blaming their by-election defeat on Muslims.

Goodwin, who came second on 28.7% of the vote to the Greens’ Hannah Spencer who romped home on 40.6% , attributed his defeat to “a dangerous Muslim sectarianism”.