Dmitry Rybolovlev accused the auction house of aiding a dealer who he says defrauded him in art sales. Sotheby’s says the oligarch spent billions without proper due diligence.
The artificial intelligence start-up said that it collaborated with news organizations and that The Times, which accused it of copyright infringement, was not telling the full story.
Tracy Kasper, who took over as president of the National Association of Realtors after the sudden resignation of her predecessor, has quit after what the group described as a threat.