Professor Campagnolo is a member of the Ontario Bar. He holds degrees in both civil law and common law from the University of Ottawa (summa cum laude), where he was awarded the Gold Medal for the highest standing in law. As a recipient of the Right Honourable Paul Martin Sr. Scholarship, he then obtained a master’s degree in public international law from the University of Cambridge. Professor Campagnolo completed doctoral studies in constitutional law at the University of Toronto with the support of the Social Sciences and Humanities Research Council (SSHRC). His doctoral research focused on the political, legal and theoretical dimensions of Cabinet secrecy in Canada.
At the professional level, from 2004 to 2005, Professor Campagnolo served as a law clerk to Justice Morris Fish of the Supreme Court of Canada. In 2006, he joined the Civil Law Section of the University of Ottawa, where he worked as an assistant professor, assistant dean and codirector of graduate studies in law until 2008. From 2008 to 2015, Professor Campagnolo practised law as counsel for the Privy Council Office. In this capacity, he advised the Prime Minister and the Clerk of the Privy Council on Supreme Court of Canada high-impact constitutional litigation, commissions of inquiry, democratic reform and access to information. In 2015, he joined the Common Law Section of the University of Ottawa as an assistant professor, and in 2020, he was promoted to the rank of associate professor.