A congressman from California has filed a lawsuit against the social media site Twitter and three of its users. MediaPost reports that Rep. Devin Nunes, a Republican representing the San Joaquin Valley counties of Tulare and Fresno, is alleging that Twitter and the anonymous creators of the parody accounts “Devin Nunes’ Mom” and “Devin Nunes’ Cow” are guilty of defaming him.

The complaint by Nunes, filed this week in Henrico County, Va., seeks at least $250 million in damages, the story reports.

MediaPost quotes the complaint stating: “Twitter allowed (and allows) its platform to serve as a portal of defamation in order to undermine public confidence in Plaintiff and to benefit his opponents and opponents of the Republican Party.”

MediaPost adds: “His complaint lists several examples of tweets he finds objectionable. One by ‘Devin Nunes’ Mom’ reads: ‘@DevinNunes your district is looking for you? Are you trying to obstruct a federal investigation again? You come home right this instant or no more Minecraft!’”

The complaint also reportedly says that an “endless barrage of tweets” by the Devin Nunes’ Mom account “maliciously attacked every aspect of Nunes’ character, honesty, ethics and fitness to perform his duties as a United States Congressman.”

The report notes that a number of courts have ruled that Section 230 of the Communications Decency Act protects platforms like Twitter from defamation liability for content posted by users. But Nunes is reportedly arguing that Twitter is biased against conservative views and therefore is not entitled to that protection.