Canadian politician and entrepreneur who has served as the managing director of the Onex Corporation. He served as the Prime Minister's Chief of Staff from 2011 to 2013.
He studied politics and economics at Trinity College at the University of Toronto and later attended the University of Toronto Law School and Harvard Law School.
He was active in the Anglican Church and at one point considered entering the priesthood.
He was born in Hamilton, Ontario in Canada.
He resigned after it came to light that he allegedly gave Mike Duffy money to repay the Canadian government for illegally claimed expenses.