Conservative Sen, Carolyn Stewart Olsen makes her way to the Senate Committee looking into Sen. Mike Duffy's living expenses on Parliament Hill in Ottawa, Tuesday,May 28, 2013. Olsen, a longtime Stephen Harper confidante, is stepping down from the Senate subcommittee that oversaw the audits at the centre of the ongoing expense scandal in the upper chamber, The Canadian Press has learned. THE CANADIAN PRESS/Fred Chartrand