One member, one vote

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In the parliamentary politics of the United Kingdom[1][2] and Canada, one member, one vote (OMOV) is a method of selecting party leaders by a direct vote of the members of a political party. Traditionally, these objectives have been accomplished either by a party convention, a vote of members of parliament, or some form of electoral college. OMOV backers claim that OMOV enhances the practice of democracy, because ordinary citizens will be able to participate. Detractors counter that allowing those unversed in the issues to help make decisions makes for bad governance.


The first OMOV leadership selection process in Canada was held by the Parti Québécois, ending on 29 September 1985.

In English-speaking Canada, the principle of OMOV has for years been a major commitment of Vaughan L. Baird. Long a proponent of the election process that empowers all members of a party to choose their leaders, Baird was instrumental in having the provincial constituency of Morris, Manitoba successfully put forward the principle of OMOV to the provincial Progressive Conservative Party on 5 November 1985. Immediately after the Morris victory, Baird wrote to every national and provincial party in Canada and urged them to do the same. Soon after, the Manitoba Liberal Party adopted the principle. Alberta PCs used the method in electing Ralph Klein as their new leader in December 1992.

The Progressive Conservative Party of Manitoba adopted the process in early 1987, but the party hierarchy later had it revoked.[citation needed] Though again adopted by the party in 1994, OMOV was revoked a second time in November 1995. Finally, on November 17, 2001, with only three votes in opposition, OMOV was passed by the Progressive Conservative Party of Manitoba.

Also in 1995, the New Democratic Party moved some way towards OMOV when they developed a series of regional primary elections prior to their convention. In the subsequent contest, the party went further adopting a modified OMOV process for the 2003 NDP leadership election in which the vote was calculated so that ballots cast by labour delegates had 25% weight in the total result, while votes cast by all party members on an OMOV had a weight of 75%. When the federal Liberal government changed the election finances law, soon after Jack Layton won the NDP's leadership in the modified OMOV election on January 23, 2003, the party implemented full OMOV for its next leadership convention.

The Bloc Québécois first used OMOV in its 1997 leadership election.

In 1991, the Alberta Progressive Conservatives changed its rules for selecting a party leader, moving from a traditional delegate-based leadership convention to an OMOV system.[3] Four party leaders were chosen using this system: Ralph Klein (1992); Ed Stelmach (2006); Alison Redford (2011); and Jim Prentice (2014).[3][4] However, the Alberta PC party ended this system in 2016 after OMOV came under criticism.[5]

The Conservative Party of Canada uses a weighted OMOV system in which all ridings are accorded an equal number of points and those points are distributed to candidates proportionately to how party members in that riding vote. The Canadian Alliance used a pure OMOV system but in merger negotiations with the Progressive Conservative Party of Canada it was agreed to adopt the weighted system used in the 1998 Progressive Conservative leadership election in order to encourage leadership candidates to seek support across the country.

In 2009, the Liberal Party of Canada adopted a weighted membership vote in which each riding counts equally in the final tally. This is not a one-member, one-vote system because, by definition, members have a variable number of votes depending on the riding they live in. However, it is similar to one member, one vote in that every party member is entitled to cast a ballot. The 2009 convention was conducted according to the old rules. However, as this convention did not feature a contested race but was a ratification of Michael Ignatieff's leadership, the last example of a full-blown delegated federal leadership convention being the 2006 convention that elected Stéphane Dion.

United Kingdom[edit]

In the United Kingdom, the methods of selecting party leaders gradually developed as parliamentary parties took shape and grew more rigid over time, in some cases many decades after their counterparts elsewhere in the Commonwealth – for example, the Conservative Party did not adopt a formal method for choosing its leaders until 1965. Traditionally, members of Parliament have usually played a major role in selecting party leaders, based largely on the belief that since a leader had to work closely with his or her parliamentary party, their views on who the leader should be had to be paramount. In recent years, all major parties have implemented reforms to allow ordinary party members a say in the choosing of a new leader, while still allowing MPs a central role in the leadership selection process.[6]

Liberal Democrats[edit]

The Liberal Democrats are the most longstanding example of a national UK party using the one-member, one-vote voting system. It has been used since the party's foundation in 1988. Rather than having a 'runoff', the Liberal Democrats use the Alternative Vote system of preference voting. Liberal Democrat MPs have no special voting rights when choosing the leader – however, a prospective candidate must be a sitting Liberal Democrat MP with the support of at least ten percent of the parliamentary party in order to stand in a leadership election.


Until 1981, the Labour Party leader was chosen by a secret ballot of Labour MPs. One-member, one-vote for the election of the party's leader was first proposed at Labour's Wembley Special Conference in 1981, but was opposed by Tony Benn,[7] who instead initiated an electoral college comprising different interest groups in the party: a trade union section comprising 40% of the total vote, consisting of block votes cast by union General Secretaries,[7] another section of 30% comprising the Parliamentary Labour Party (Labour MPs) and a further 30% for Constituency Labour Parties (CLPs). Following 1989, it was compulsory for CLPs to ballot its members, with the CLP's vote going to only the winning candidate.[8]

Party leader Neil Kinnock attempted, but failed, to introduce one-member, one-vote in 1984. His successor, John Smith partially introduced a new one-member, one-vote system by abolishing the trade union block vote in the selection of Labour parliamentary candidates, and by giving union members paying the political levy (in the trade union section of Labour's electoral college) a direct vote in the party's leadership elections. He introduced the change at the Labour Party Conference in 1993, and was verbally supported in winning votes for it at the Conference by then-Shadow Cabinet member John Prescott.[9]

A complete one-member, one-vote voting system (as originally proposed by both Neil Kinnock and John Smith) was introduced in 2014 by Labour leader Ed Miliband.[10][11] All Labour Party members are now entitled to vote for the Leader and Deputy Leader of the party as part of an electoral college which includes MPs and trade unions.

Keir Starmer attempted to remove the one-member one-vote system as part of a package of internal electoral reforms at the 2021 Labour Party Conference,[12] but was forced to water down his proposals after widespread opposition.[13]


In January 1998, the one member, one vote principle was adopted as part of the series of reforms of the Conservative Party. MPs choose two candidates to go to a vote by all Conservative members.

The system was first used by the Conservatives in the 2001 leadership election to replace William Hague. A runoff by various candidates led to Iain Duncan Smith and Kenneth Clarke being put forward to a vote of all Conservative members, where 79% of the 328,000 eligible members voted. Duncan Smith became the new Leader of the Conservative Party with 61% of the votes (155,933 votes). Kenneth Clarke obtained 39% of the votes (100,544 votes).

In the 2003 leadership election no ballot took place, since Michael Howard was unopposed in standing to replace Duncan Smith. The two-candidate runoff was employed again two years later, when David Cameron was chosen by the Conservative members as their new leader over David Davis. Cameron had 134,446 votes compared to Davis’ 64,398 votes, making a total number of 198,844 votes.

See also[edit]


  1. ^ Chartist - Whatever happened to One Member One Vote? Archived 2006-10-04 at the Wayback Machine
  2. ^ "Archived copy". Archived from the original on 2006-10-06. Retrieved 2007-01-06.{{cite web}}: CS1 maint: archived copy as title (link)
  3. ^ a b Ted Morton, Leadership Selection in Alberta, 1992-2011: A Personal Perspective, Canadian Parliamentary Review Vol. 36, number 2 (2013).
  4. ^ Barry Cooper, Do Alberta's Progressive Conservatives have a death wish?, Troy Media (November 11, 2016).
  5. ^ Michelle Bellefontaine, Alberta PC party ends one member, one vote system to choose leaders, CBC News (May 7, 2016).
  6. ^ Thomas Quinn, Electing and Ejecting Party Leaders in Britain (Palgrave Macmillan UK, 2012).
  7. ^ a b "Praise Benn - but never forget the damage he did to Labour". Labour List. 18 March 2014. Retrieved 22 December 2016.
  8. ^ Johnston, Neil (2020-12-13). "Leadership Elections: Labour Party". {{cite journal}}: Cite journal requires |journal= (help)
  9. ^ Patrick Wintour and Keith Harper (30 September 1993). "Smith pulls off high-risk gamble". The Guardian newspaper. Retrieved 22 December 2016.{{cite web}}: CS1 maint: uses authors parameter (link)
  10. ^ "Labour presses on with 'one member, one vote' leadership reforms". BBC News. 30 January 2014. Retrieved 22 December 2016.
  11. ^ John Rentoul, Tony Blair: Prime Minister (2001) pp 206-18
  12. ^ Jon Stone (21 September 2021). "Keir Starmer pushes to scrap 'one member, one vote' Labour leadership elections and return power to MPs". The Independent. Retrieved 20 October 2021.
  13. ^ Justin Parkinson; Jennifer Scott (25 September 2021). "Labour conference: Sir Keir Starmer forced to drop leadership rule change". BBC. Retrieved 20 October 2021.