A group of influential Republican senators on Thursday called for the appointment of a special counsel to investigate how the Department of Justice and FBI conducted a probe of possible collusion between the Trump campaign and the Russians.

The demand came in a letter to Attorney General Jeff Sessions and his deputy, Rod Rosenstein, from Judiciary Committee chairman Chuck Grassley of Iowa, John Cornyn of Texas – a committee member and number two in the Senate GOP leadership – and committee members Lindsey Graham, R-S.C., and Thom Tillis, R-N.C.

They requested that a special counsel assist the DOJ inspector general in digging into possible misuse of the foreign intelligence surveillance system to obtain warrants against a former Trump campaign aide, leaks of classified intelligence to the media, and “potential improprieties in the FBI’s relationship with Christopher Steele.”

Grassley and Graham already made a criminal referral to the DOJ two months ago concerning former British intelligence officer Christopher Steele – author of the so-called “Trump dossier” – recommending that officials investigate possible false statements by Steele to federal officials.

Christopher Steele, the former MI6 agent who set-up Orbis Business Intelligence, compiled a dossier on Donald Trump, in London, where he has spoken to the media for the first time, in this file photo dated March 7, 2017.

One Senate Judiciary Committee Democratic source said, “They keep forgetting that the Russia investigation started with…