Task: Text Categorization
Input (English): His time in office saw the promotion of a protectionist policy that was known as the "National Plan," it also saw corruption, as the Pacific Railroad scandal broke in 1873, forcing him to resign for five years. As a lawyer early in his career, he had earned the esteem of many for his defense of American raiders in the Rebellions of 1837. Elected alderman of the city of Kingston, the following year he and political allies like Etienne Cartier and George Brown accepted the Conservative party's nomination for a seat on the Legislative Assembly. Finally in 1857 he gained the highest office in the land. For ten points, name this politician who, following the Act of Dominion, became the first Prime Minister of Canada.
Output (English): History