Devin Nunes has sued Twitter and several of its users, among them a parody account of his mother and a cow. The Republican congressman is seeking $250m (£188m) in damages for “abusive, hateful and defamatory” content allegedly hosted on Twitter, which the suit claims was intended to interfere with the investigation into Russian involvement in the 2016 Presidential election. The complaint, filed in a Virginia state court on Monday, refers specifically to the accounts “Devin Nunes’ Mom” (@DevinNunesMom) and “Devin Nunes’ cow” (@DevinCow), as well as Republican communications consultant and critic of Mr Nunes, Liz Mair.