Fox News files a motion to dismiss Dominion’s defamation suit over 2020 election coverage. Rudolph W. Giuliani, a lawyer for former President Donald J. Trump, disputing the results of the election won by Joseph R. Biden Jr.Credit...Erin Schaff/The New York Times May 18, 2021, 9:07 p.m. ET Fox News Media, the Rupert Murdoch-controlled cable group, filed a motion on Tuesday to dismiss a $1.6 billion defamation lawsuit brought against it in March by Dominion Voting Systems, an election technology company that accused Fox News of propagating lies that ruined its reputation after the 2020 presidential election. The Dominion lawsuit and a similar defamation claim brought in February by another election company, Smartmatic, have been widely viewed as test cases in a growing legal effort to battle disinformation in the news media. And it is another byproduct of former President Donald J. Trump’s baseless attempts to undermine President Biden’s clear victory.