The 1975 New Democratic Party leadership election, was held in Winnipeg, from July 4 to 7 to elect a leader of the New Democratic Party of Canada. David Lewis retired as federal leader, and Ed Broadbent was elected as his successor. Rosemary Brown made the first attempt by woman-of-colour to run for leader of a major recognized Canadian political party and came in second. Broadbent led the NDP to its greatest electoral successes to then, including the historic 43 seats in the House of Commons in 1988. This convention marked the beginning of fourteen years of party unity and stability that allowed it to reach its best electoral performances of the 20th century.

Quick Facts Candidate, Fourth ballot delegate count ...

1975 New Democratic Party leadership election

← 1971 July 4 – 7, 1975 1989 →

RB Candidate Ed Broadbent Rosemary Brown Lorne Nystrom Fourth ballot delegate count 984 (59.9%) 658 (40.1%) Eliminated Third ballot delegate count 694 (43.4%) 494 (30.9%) 413 (25.8%) Second ballot delegate count 586 (36.1%) 397 (24.5%) 342 (21.1%) First ballot delegate count 536 (33.1%) 413 (25.6%) 345 (21.3%)   JPH DKC Candidate John Paul Harney Douglas Kay Campbell Fourth ballot delegate count Eliminated Eliminated Third ballot delegate count Eliminated Eliminated Second ballot delegate count 299 (18.4%) Eliminated First ballot delegate count 313 (19.3%) 11 (0.7%)

Leader before election David Lewis Elected Leader Ed Broadbent

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• Morton, Desmond (1986). The New Democrats, 1961-1986 : the politics of change (3 ed.). Toronto: Copp Clark Pitman. ISBN 0-7730-4618-6.
• Smith, Cameron (1989). Unfinished Journey: The Lewis Family. Toronto: Summerhill Press. ISBN 0-929091-04-3.