Question: On what date did a Canadian politician born January 2, 1979, succeed as leader of the New Democratic Party in Canada? 

Context paragraphs:
Nicole Sarauer: Nicole Sarauer is a Canadian politician, who was elected to the Legislative Assembly of Saskatchewan in the 2016 provincial election.  She represents the electoral district of Regina Douglas Park as a member of the Saskatchewan New Democratic Party.  On June 20, 2017, she was selected to succeed Trent Wotherspoon as Leader of the Opposition and interim leader of the Saskatchewan New Democratic Party.

Alexa McDonough: Alexa Ann McDonough, {'1': ", '2': ", '3': ", '4': "} (née Shaw; born August 11, 1944) is a Canadian politician who became the first woman to lead a major, recognized political party in Canada, when she was elected the Nova Scotia New Democratic Party's (NSNDP) leader in 1980.  She served as a member of the Nova Scotia Legislature from 1981 to 1994, representing the Halifax Chebucto and Halifax Fairview electoral districts.  She stepped down as the NSNDP's leader and as a member of the legislature in 1994.  She subsequently ran for, and was elected, leader of the federal New Democratic Party (NDP) in 1995.  McDonough was elected the Member of Parliament (MP) for the federal electoral district of Halifax in 1997.  She stepped down as party leader in 2003, but continued to serve as an MP for two more terms, until 2008, when she retired from politics altogether.  In 2009 she became the interim president of Mount Saint Vincent University and was appointed an Officer of the Order of Canada in December of that year.

Guy Caron: Guy Caron (born May 13, 1968) is a Canadian politician, who was elected to the House of Commons of Canada in the 2011 election.  He represents the electoral district of Rimouski-Neigette—Témiscouata—Les Basques as a member of the New Democratic Party (NDP).  He was the NDP's critic for Finance and the Atlantic Canada Opportunities Agency, but resigned from the NDP's shadow cabinet in February 2017 to pursue leadership of the New Democratic Party of Canada.

Jagmeet Singh: Jagmeet Singh Jimmy Dhaliwal {'1': ", '2': ", '3': ", '4': "} (born January 2, 1979), known professionally as Jagmeet Singh ( ), is a Canadian politician who is leader of the New Democratic Party.

Denise Savoie: Denise Savoie ( ; born November 21, 1943 in St. Boniface, Manitoba) is a Canadian politician, who served as the federal Member of Parliament for Victoria from 2006 until 2012 representing the New Democratic Party.  She was elected to the House of Commons of Canada in the 2006 federal election as a candidate of the New Democratic Party.  She resigned from parliament effective August 31, 2012 citing health reasons.

Olivia Chow: Olivia Chow (born March 24, 1957) is a former Canadian politician, a former New Democratic Party Member of parliament (2006–2014), and former city councillor (1991–2005) in Toronto.  She won the Trinity—Spadina riding for the New Democratic Party on January 23, 2006, becoming a member of the Canadian House of Commons.  In 2011, she was re-elected in her riding for her third straight win.  Chow is the widow of former NDP and Opposition Leader Jack Layton; they were married from 1988 until his death from cancer in 2011.  She speaks Cantonese, Mandarin and English.  In May 2012, Chow was named one of the top 25 Canadian immigrants in Canada by "Canadian Immigrant" magazine.  Chow's personal memoir, titled "My Journey", was published January 21, 2014.  Chow resigned her seat in parliament on March 12, 2014 in order to run in the 2014 Toronto mayoral election, where she placed third.

New Democratic Party: The New Democratic Party (NDP; French: "Nouveau Parti démocratique" , "NPD") is a social democratic political party in Canada.  The leader of the federal wing of the NDP is Thomas Mulcair, who was elected in the 2012 leadership election.  He led the party through the 2015 federal election, and then lost a party leadership review on April 10, 2016.  He was suceeded as leader by Jagmeet Singh, who won the 2017 leadership election on October 1st, with 53.8% of the vote.

Doug Donaldson: Doug Donaldson (born January 20, 1957) is a Canadian politician.  He is the Minister of Forests, Lands and Natural Resource Operations,and Rural Development in British Columbia, a member of the Legislative Assembly of British Columbia and a member of the British Columbia New Democratic Party.  He was elected to the Legislative Assembly from the riding of Stikine in the 2009 provincial election and re-elected in the 2013 and 2017 elections.  With the New Democratic Party assuming Government as of July 18, 2017, he opened the 41st Parliament of British Columbia under Premier John Horgan on September 11, 2107.

Bill Blaikie: William Alexander "Bill" Blaikie, {'1': ", '2': ", '3': ", '4': "} (born June 19, 1951) is a retired Canadian politician.  He was a Member of Parliament (MP) from 1979 to 2008, representing Elmwood—Transcona and its antecedent ridings in the Canadian House of Commons for the federal New Democratic Party.  Following his retirement from federal politics, he was a member of the Legislative Assembly of Manitoba from 2009 until 2011, representing the Winnipeg division of Elmwood as a member of the New Democratic Party of Manitoba, and served as Minister of Conservation and Government House Leader.

Nova Scotia New Democratic Party: The Nova Scotia New Democratic Party is a social-democratic provincial party in Nova Scotia, Canada.  It is aligned with the federal New Democratic Party (NDP).  It was founded as the Co-operative Commonwealth Federation (CCF) in 1932, and became the New Democratic Party in 1961.  It became the governing party of Nova Scotia following the 2009 Nova Scotia election.  It is the first New Democratic Party in Atlantic Canada to form a government.  Much of the party's success prior to the 2009 election was based in the urban areas of the provincial capital, Halifax However, the party's support has grown to the rest of Nova Scotia.

Supporting paragraphs: New Democratic Party Jagmeet Singh
Answer: October 1st