Lori Turnbull, an associate professor of political science and director of the School of Public Administration at Dalhousie University, joins CPAC's Andrew Thomson to preview what's at stake as voters head to the polls in four federal byelections. Rosemarie Aquilina, a Michigan circuit court judge, d iscusses her appearance before the House of Commons heritage committee, where she called for an independent judicial inquiry into abuse and harassment in Canadian sport. New Brunswick MLA Dorothy Shephard explains the circumstances that led to her resignation last week as minister of social development.