Not prosecution of Donald Trump himself, but directly related to his claims of voting fraud:

US voting systems Dominion sues Fox News over false claims the company rigged the 2020 election

"Dominion Voting Systems has filed a $1.6 billion defamation lawsuit against Fox News, arguing the cable news giant, in an effort to boost faltering ratings, falsely claimed that the voting company had rigged the 2020 US presidential election.

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"A rival technology company, Smartmatic USA, also sued Fox News over election claims for a similar sum of money.

"Unlike Dominion, Smartmatic's participation in the 2020 election was restricted to Los Angeles County.

"Dominion lawyers said they had not yet filed lawsuits against specific media personalities at Fox News but the door remained open."

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