The 1971 Labour Party deputy leadership election took place in November 1971 after left-wingers Michael Foot and Tony Benn challenged sitting deputy leader Roy Jenkins.
Candidates Roy Jenkins, incumbent Deputy Leader, Member of Parliament for Birmingham Stechford Michael Foot, Shadow Leader of the House of Commons, Member of Parliament for Ebbw Vale Tony Benn, Shadow Secretary of State for Trade and Industry, Member of Parliament for Bristol East
Results First ballot: 10 November 1971CandidateVotes% Roy Jenkins 140 48.3 Michael Foot 96 38.0 Tony Benn 46 16.3 Second ballot required
As a result of the first round, Benn was eliminated. The remaining two candidates were left to face each other in a second round a week later.
Second ballot: 17 November 1971CandidateVotes % Roy Jenkins 140 52.6 Michael Foot 126 47.4 Roy Jenkins re-elected
Sources http://privatewww.essex.ac.uk/~tquinn/labour_party_deputy.htm