Fox News is also facing a $2.7 billion lawsuit from Smartmatic, another voting tech company that Giuliani, Powell, and others in former President Donald Trump's orbit repeatedly spread lies about on conservative airwaves.
That campaign to overturn the election - which was roundly rejected by courts but embraced by pro-Trump media - culminated in the January 6 attack on the Capitol, in which a horde of Trump supporters violently interrupted the certification of the 2020 vote by Congress.
Back in February, Smartmatic, another voting machine company, sued Fox News for spreading baseless accusations that the company was part of an global communist plot to rig the election for Joe Biden.
Earlier this week, Powell tried to fend off the more than $1.3 billion in liabilities against her personally by arguing in a motion to dismiss that "no reasonable person" would believe that her well-publicized comments about an worldwide plot against former President Donald Trump were "statements of fact".More news: Biden: I plan to run for reelection in 2024
A second voting systems company, Smartmatic, has already filed lawsuits against Fox News and several of its on-air personalities for spreading misinformation about the 2020 election.
The company is suing Fox News for defamation and seeking $1.6 billion in damages. "So Fox set out to lure viewers back - including President Trump himself - by intentionally and falsely blaming Dominion for President Trump's loss by rigging the election". His allies promoted outlandish conspiracy theories about Dominion to support Trump's false claims.
The repeated claims that the election was marred by fraud sunk in with Republican voters, though, and Republican lawmakers now cite those false beliefs among voters as justifying new restrictions on voting.
In apparent response to the growing number of defamation cases, conservative USA news outlets have begun to rely on prepared disclaimers or additional prerecorded programming to repudiate pro-Trump conspiracy theories spouted by guests and hosts.
"Dominion's contracts and prospects have come under increased pressure in a number of significant markets", Stephen Shackelford, partner at Susman Godfrey and one of Dominion's attorneys on the case against Fox News, told Insider in a Friday press conference.More news: Latest COVID-19 figures as fears grow about relaxing restrictions
"Fox took a small flame" of disinformation and "turned it into a forest fire", Dominion said in its lawsuit.
"Fox engaged in this knowing and reckless propagation of these enormous falsehoods in order to profit off these lies", reads the lawsuit.
"As Fox well knew, Powell and Giuliani were facially unreliable sources and their claims were ludicrous, inherently improbable, and technologically impossible", the complaint said. Some at Fox News knew the claims were false but their comments were drowned out, lawyers said.More news: Province announces more rapid COVID-19 tests for businesses