This just seems like the reaction of a snowflake to me. I understand he has been criticized on Twitter, but he’s a Congress member. He needs a thicker skin.
Here’s a link to the actual complaint. He filed for $250M, but I think what he really wants is an injunction against the three people that have been hounding him. The twitter names add a bit of humor to the story.
From the actual complaint:
Plaintiff, Devin G. Nunes, by counsel, files the following Complaint against defendants, Twitter, Inc. (“Twitter”), Elizabeth A. “Liz” Mair (“Mair”), Mair Strategies, LLC (“Mair Strategies”), “Devin Nunes’ Mom” (@DevinNunesMom) and “Devin Nunes’ cow” (@DevinCow), jointly and severally.