<Tr> <Td_colspan="2"> <P> New Democratic Party leadership elections </P> 1961 1971 1975 1989 1995 2003 2012 2017 </Td> </Tr> <P> New Democratic Party leadership elections </P> <P> The 2017 New Democratic Party leadership election will take place between September 18 and October 15, 2017 due to incumbent Tom Mulcair having lost a vote on a leadership review at the New Democratic Party (NDP)'s federal convention held in Edmonton, Alberta on April 10, 2016 . 52% of delegates voted in favour of holding a new leadership election, compared to 48% who voted for Mulcair's leadership to continue . Under the party's constitution, the leadership election was to be held by April 10, 2017; however, the delegates present passed a motion to give the party up to 24 months to organize a leadership election . Mulcair is expected to remain leader until his successor is elected . </P> <P> The result at the 2016 convention was the first time a leader of any Canadian federal political party has failed to receive at least 50% in a leadership review vote . In the months since the 2015 federal election, Mulcair's leadership had been a point of conflict within the party because of the election campaign, in which the NDP fell to third place from the Official Opposition status it gained in the 2011 election . The New Democrats had led public opinion polls since May 2015 and appeared to be poised to win their first federal election in history . However, they fell back behind the Liberals and Conservatives in the last month . The election thus resulted in a Liberal majority government . The party lost more than half of its seats and fell to third place . Mulcair's leadership faced criticism following the election, particularly due to his moderate platform that the party was running on . In contrast, Liberal leader Justin Trudeau had promised to run a budget deficit in order to fund stimulus programs and higher social spending, a position which was perceived as allowing the Liberals to outflank the NDP . </P>

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