Devin Nunes Sues Fusion GPS, Campaign for Accountability

The only report I've seen on this so far is at The Daily Caller, and there's no link to a complaint, so details are a bit thin so far. The lawsuit appears to focus on the Steele "dossier" and a series of ethics complaints that were filed against Nunes when he attempted to investigate the dossier. Chuck Ross' article, Devin Nunes Files Racketeering Lawsuit Against Fusion GPS, states:

The complaint, which the California Republican filed in federal court in Virginia, alleges that Fusion GPS and Campaign for Accountability (CfA) worked on a “joint and systematic effort to intimidate, harass, threaten, influence, interfere with, impede, and ultimately to derail” Nunes’ investigation of the dossier, which he directed as chairman of the House Permanent Select Committee on Intelligence (HPSCI). 

In the lawsuit, Nunes draws a link between CfA payments to Fusion GPS and a string of ethics complaints that the watchdog group filed against him last year. 

The Daily Caller News Foundation reported Aug. 1 that CfA’s 2018 tax filings show the group paid Fusion GPS nearly $140,000 unspecified research activities. 

CfA filed three complaints against Nunes with the Office of Congressional Ethics. In a Jan. 25, 2018 complaint, CfA accused Nunes of leaking sensitive House Intelligence Committee information about Fusion GPS.

Nunes claims that the ethics complaints were "fraudulent and retaliatory." He also claims that Glenn Simpson, a founder of Fusion GPS, lied on at least two occasions with regard to the Steele "dossier":