Sen. Ted Stevens (R-Alaska) is filing a formal complaint with chamber officials regarding what he considers an “unethical” broadcast of an interview with him by a CNN reporter Tuesday. ROLL CALL reports: In an incident that could have repercussions for TV journalists’ access to the chamber, Stevens is furious with CNN correspondent Joe Johns for an interview conducted outside the weekly GOP policy luncheons, but far away from the usual bank of TV cameras set up for such interviews next to the storied Ohio Clock.