Led by John Diefenbaker (pictured), the Progressive Conservative Party won a plurality of House of Commons seats in the Canadian federal election.

John Diefenbaker

Prime Minister of Canada from 1957 to 1963

John George Diefenbaker was the 13th prime minister of Canada, serving from 1957 to 1963. He was the only Progressive Conservative party leader between 1930 and 1979 to lead the party to an election victory, doing so three times, although only once with a majority of the seats…

Progressive Conservative Party of Canada

Canadian political party (1942–2003)

The Progressive Conservative Party of Canada was a centre to centre-right federal political party in Canada that existed from 1942 to 2003.

Plurality (voting)

Poll most votes, but less than half overall

A plurality vote or relative majority describes the circumstance when a party, candidate, or proposition polls more votes than any other but does not receive more than half of all votes cast.

House of Commons of Canada

Lower house of the Parliament of Canada

The House of Commons of Canada is the lower house of the Parliament of Canada. Together with the Crown and the Senate of Canada, they comprise the bicameral legislature of Canada.

1957 Canadian federal election

The 1957 Canadian federal election was held June 10, 1957, to select the 265 members of the House of Commons of Canada of the 23rd Parliament of Canada. In one of the greatest upsets in Canadian political history, the Progressive Conservative Party, led by John Diefenbaker,…