Voting equipment manufacturer Smartmatic on Monday sent legal notices to Fox News and other conservative media organizations threatening legal action if they do not retract stories that have promoted “false and defamatory” claims about the company and its products in the weeks following the presidential election. In the letters, which were also sent to One America News and Newsmax, an attorney for Smartmatic said Fox “engaged in a concerted disinformation campaign” as Fox hosts and guests have repeatedly pushed discredited conspiracy theories and other misinformation to claim, falsely, that the election was “stolen” from President Donald Trump. Misinformation about voting...