The move comes as the House Ethics Committee announced that it is investigating allegations that Nunes may have mishandled classified information. With the Ethics Committee now formally involved in the dispute, Nunes could no longer oversee the Russia probe, although he will remain in place as chairman of the Intelligence Committee.
The Intelligence Committee's Russia investigation will be taken over by Reps. Michael Conaway (R-Texas), Trey Gowdy (R-S.C.) and Tom Rooney (R-Fla.).
In a statement, Nunes blamed complaints filed with the Office of Congressional Ethics over his decision to brief President Donald Trump on intelligence intercepts of conversations between Trump campaign aide and Russian officials during the election.
“Several left-wing activist groups have filed accusations against me with the Office of Congressional Ethics," Nunes said in a statement Thursday. "The charges are entirely false and politically motivated, and are being leveled just as the American people are beginning to learn the truth about the improper unmasking of the identities of U.S. citizens and other abuses of power."