Political legacy is a concept that is often tossed around casually, hastily defined by commentators long before a prime minister leaves office. In the case of the polarizing Stephen Harper, clear-eyed analysis of his tenure is hard to come by. The Harper Factor offers a refreshingly balanced look at the Conservative decade under his leadership. What impact did Harper have on the nation's finances, on law and order, and on immigration? Did he accomplish what he promised to do in areas such as energy and intergovernmental affairs? How did he change the conduct of politics, the workings of the...