The company Dominion, which is the manufacturer of the vote counting system used during the 2020 presidential election, claims that Fox News deliberately spread conspiracy theories that the vote count was not done correctly.

Dominion said Fox News knew the rumors were false, but nevertheless aired several reports claiming the election was rigged in President Joe Biden's favor.

"We tend to overuse the term 'historical', but in this case it's true. I have not seen a similar case in several decades, says Roy Gutterman, lawyer and professor of journalism at Syracuse University in New York, in SVT's Agenda.

The trial is expected to last five weeks.

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The trial between Fox News and Dominion Photo: CNN/AP

Watch Roy Gutterman talk more about the evidence and what makes the case so special in the clip above – and see a longer feature about the case in SVT's Agenda.