Manitoba's primary political parties are the social democraticNew Democratic Party of Manitoba, the Progressive Conservative Party of Canada and the Liberal Party of Manitoba. Canada is a constitutional monarchy with Queen Elizabeth II as the reigning monarch since February 6, 1952. ... Social democracy is a political ideology emerging in the late 19th and early 20th centuries from supporters of Marxism who believed that the transition to a socialist society could be achieved through democratic evolutionary rather than revolutionary means. ... The New Democratic Party of Manitoba is a social democratic political party in Manitoba, Canada. ... The Progressive Conservative Party of Canada (PC) (In French: Parti progressiste-conservateur du Canada) was a Canadian centre-right conservative political party that existed from 1867 to 2003. ... The Manitoba Liberal Party is a political party in Manitoba, Canada. ...