The 1971 New Democratic Party leadership election was a leadership convention held in Ottawa from April 21 to 24 to elect a leader of the New Democratic Party of Canada. Tommy Douglas retired as federal leader, and David Lewis was elected as his successor. At this convention the Waffle faction was at the zenith of its popularity and power. Donald C. MacDonald, the former Ontario NDP leader, was elected as the party's president. The major non-leadership issues were what stance would the party take in terms of Quebec sovereignty and whether policy initiatives calling for the nationalization of the oil, gas, and mining industries would pass.
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"Greatest Spending Reported by Laxer". The Globe and Mail. Toronto. April 26, 1971. p. 4.