the House of Commons and re-arrange Canada’s fiscal arrangements to reduce transfers to Ontario. The Ontario government is widely credited with resisting these attempts and rolling back Harper’s efforts to shift power away from Toronto and Ontario. Mendelsohn directed these efforts within the public service and Ontario’s campaigns eventually led to more cordial relationships between the two governments and successful collaboration on infrastructure projects and a move toward a harmonized value added tax between the federal and provincial governments. Federal Government Mendelsohn led the polling unit for the Privy Council Office in the aftermath of the 1995 referendum, supporting federal efforts to pass the Calgary Declaration recognizing Quebec’s unique place in Canada, the Social Union Framework Agreement and the Supreme Court Reference on Quebec’s right to secede and the subsequent Clarity Act, outlining the obligations on the part of governments should Quebecers vote to secede from Canada. Mendelsohn published academic work using data from his time in government on the Quebec nationalist movement. Mendelsohn argued that inter-personal variables and the importance of ‘feelings’ had been underplayed in previous scholarship focused on rational choice models. Mendelsohn was appointed the first Deputy Secretary to the Cabinet for Results & Delivery in February 2015. Mendelsohn’s appointment was controversial because he had worked on the Liberal platform. Mendelsohn described his role as shifting the culture of the federal government toward implementation and measurement of impact by tracking progress on implementation of the government’s agenda on behalf of the Prime Minister, helping Ministers overcome obstacles to success and helping Departments clarify their desired outcomes, metrics, measures of success and evaluation strategies. Mendelsohn’s work became closely associated with Sir Michael Barber’s “Deliverology” approach when Barber and Mendelsohn appeared at the Trudeau government’s first cabinet retreat. Mendelsohn himself never used the term “deliverology” when describing his work, outlining his goals as helping Ministers be clear about their goals, departments are organized to implement, and relentless in measuring progress and recalibrating. Mendelsohn continued to appear at all cabinet retreats, outlining the government’s progress on meeting it commitments. The Results and Delivery Unit (RDU) was responsible for working with departments to implement agile processes to more effectively hit targets on things like the reduction of child poverty, the elimination of boil water advisories for Indigenous communities and conservation. In November 2017, the government released a public tracker reporting on its progress on mandate letters. Many editorialists were critical of