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The November 2020 email from an anguished Fox News news producer to colleagues sent up a flare amid a fusillade of false claims.

The producer warned: Fox cannot let host Jeanine Pirro back on the air. She is pulling conspiracy theories from dark corners of the Web to justify then-President Donald Trump's lies that the election had been stolen from him. The existence of the email, confirmed by two people with direct knowledge of it, is first publicly disclosed by NPR in this story. Fox News declined comment.

Pirro was far from alone in broadcasting such false claims. In the weeks that followed Election Day 2020, other prominent Fox stars, commentators and their guests heavily promoted them.

A repeat target was Dominion Voting Systems, the election machine and technology company. Trump and his allies alleged on Fox that Dominion was engaged in a conscious effort to throw the 2020 race to Joe Biden. They implied and falsely asserted on Fox programs that Dominion's machines and software either discarded Trump's votes or transferred them to Biden. Dominion argues their false claims were frequently egged on by Fox's own stars.

The producer's email is among the voluminous correspondence acquired by Dominion's attorneys as part of its discovery of evidence in a $1.6 billion defamation suit it filed against Fox News and its parent company. Dominion alleges it has been "irreparably harmed" by the lies, conspiracy theories and wild claims of election fraud that aired on Fox. ...