Fox Corp. CEO Lachlan Murdoch is slated to appear for a deposition on Monday as the Dominion Voting Systems defamation lawsuit against the company and its cable networks moves forward.Dominion's lawsuit against Fox, which is seeking $1.6 billion in damages, has argued Fox News and Fox Business made false claims its voting machines rigged the results of the 2020 election between Donald Trump and Joe Biden.In June, a Delaware judge overseeing the case had reportedly ruled that Dominion's lawsuit could be expanded beyond the cable TV networks to include their parent company, meaning Fox Corp.'s chair and Lachlan's father, Rupert Murdoch, could also be deposed.Neither side has shown signs of entering settlement talks, although that could change before the trial's expected start in April, CNBC previously reported.First Amendment experts and advocates have been closely watching the case, in part because of Dominion's lengthy list of examples that Fox network hosts repeatedly made false claims, even after facts came to light."