Last month, Dominion Voting Systems filed a defamation lawsuit seeking $1.3 billion in damages from former President Donald Trump's lawyer Rudy Giuliani over his election fraud claims.
"A number of posts on your website must be preserved because they are relevant to our client's libel claims; these claims are based on false accusations that Dominion rigged the 2020 election", lawyers from the firm Clare Locke that represents Dominion, said in letters circulating on US media outlets.
The company requested that even posts that had been removed be preserved.
According to The Washington Post, Dominion Voting Systems asked each social media giant to keep posts published by Fox News host Maria Bartiromo, MyPillow CEO Mike Lindell, and those by Trump. It also included the media organisations Fox News, One America News Network, and Newsmax.
Dominion had previously filed a lawsuit against Republican lawyer Sidney Powell, requesting $1.3 billion in compensation for money the company has spent increasing security for its employees and doing damage control to its reputation, as well as the loss of future business.
Trump and his lawyers have alleged massive election and voter fraud in several US states, including using deceased voters' identities to cast ballots in favour of Democratic rival Joe Biden.