Hosts at Fox News had serious concerns about allegations of voter fraud in the 2020 presidential election being made by guests who were allies of former President Donald Trump, according to court filings in a $1.6 billion defamation lawsuit against the network.

“Sidney Powell is lying,” about having evidence for election fraud, Tucker Carlson told a producer about the attorney on Nov. 16, 2020, according to an excerpt from an exhibit that remains under seal.

The internal communication was included in a redacted summary judgment brief filed Thursday by attorneys for Dominion Voting Systems.

Carlson also referred to Powell in a text as an “unguided missile,” and “dangerous as hell.” Fellow host Laura Ingraham, meanwhile, told Carlson that Powell is “a complete nut. No one will work with her. Ditto with Rudy,” referring to former New York mayor and Trump supporter Rudy Giuliani.

Sean Hannity, meanwhile, said in a deposition “that whole narrative that Sidney was pushing, I did not believe it for one second,” according to Dominion’s filing.

Denver-based Dominion, which sells electronic voting hardware and software, is suing both Fox News and parent company Fox Corporation. Dominion said some Fox News employees deliberately amplified false claims that Dominion had changed votes in the 2020 election, and that Fox provided a platform for guests to make false and defamatory statements.