Four senators have been chosen to sit on the committee by three of the four Senate groups. But they're all waiting for the Conservative Senate caucus to name its single member, despite a unanimously passed motion requiring all Senate groups to choose their members by the end of the day last Friday. The delay revolves around a dispute over who the Senate's committee co-chair should be. Sen. Pierre Dalphond, a former judge chosen to represent the Progressive Senate Group on the committee, says Conservative Senate Leader Don Plett is refusing to name the Tory senator unless there's a guarantee that person will also be named committee co-chair — an assurance other Senate groups are not prepared to give.