Stephen Joseph Harper PC MP (born April 30, 1959) is a Canadian politician who was the 22nd Prime Minister of Canada from 2006 to 2015. He was the Leader of the Conservative Party from 2004 to 2015. Harper became prime minister in 2006, forming a minority government after the 2006 election. He is the first prime minister to come from the newly reconstituted Conservative Party, which was formed by a merger of the Progressive Conservative Party and the Canadian Alliance. More: en.wikipedia.org.