NDP leadership candidate Nathan Cullen plays with his son at the convention in Toronto March 24, 2011.Kevin Van Paassen
NDP leadership candidate Thomas Mulcair gives a thumbs up to supporters at the convention in Toronto March 24, 2011.Fred Lum/The Globe and Mail
NDP leadership candidate Brian Topp, centre, stands with supporters at the convention in Toronto March 24, 2011.Kevin Van Paassen
Candidate Peggy Nash reacts to the results of the first ballot after the first ballot at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Saturday, March 24, 2012.Kevin Van Paassen/The Globe and Mail
Former NDP leader Ed Broadbent reacts with Brian Topp supporters during the NDP leadership convention in Toronto on Saturday, March 24, 2012.Frank Gunn/The Globe and Mail
The first ballot voting results are shown at the NDP leadership convention in Toronto on Saturday, March 24, 2012.Pawel Dwulit/The Canadian Press
NDP supporter Griffyn Chezenko attends the NDP leadership convention in Toronto on Saturday, March 24, 2012.The Canadian Press/Pawel Dwulit
Candidate Paul Dewar is kissed by his wife Julia Sneyd after the first ballot at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Saturday, March 24, 2012.Kevin Van Paassen/The Globe and Mail
Delegate George Szebik shows his support for Thomas Mulcair at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Saturday, March 24, 2012.Kevin Van Paassen/The Globe and Mail
Federal Heritage Minister James Moore of the rival Conservative party attends the NDP leadership convention in Toronto on Saturday, March 24, 2012.Frank Gunn/The Canadian Press
Candidate Niki Ashton receives a hug from a supporter after the first ballot at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Saturday, March 24, 2012.Kevin Van Paassen/The Globe and Mail
Thomas Mulcair supporters rally during the NDP leadership convention in Toronto on Saturday, March 24, 2012.Pawel Dwulit/The Canadian Press
Delegates line up to vote on the second round of the NDP leadership election in Toronto on March 24, 2012.
A Peggy Nash supporter at the leadership convention of the New Democratic party in Toronto, March 24, 2012.The Globe and Mail
MP Olivia Chow speaks to supporters during a tribute to Jack Layton at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
NDP leadership candidate Thomas Mulcair during the NDP leadership convention on March 23 2012.Fred Lum/The Globe and Mail
A supporter waits for candidate Peggy Nash to be announced at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
Haramrit Singh,10, holds up sign for his dad NDP leadership candidate Martin Singh during the NDP leadership convention on March 23 2012.Fred Lum/The Globe and Mail
An aboriginal woman holds a feather as Shawn Atleo speaks during a tribute to Jack Layton at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
Brad Lavigne and Anne McGrath speak to supporters during a tribute to Jack Layton at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
MP Olivia Chow receives a hug from Anne McGrath during a tribute to Jack Layton at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
Candidate Brian Topp speaks at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
Candidate Peggy Nash makes her way through a sea of supporters at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
Candidate Nathan Cullen, right, and his family wave to supporters at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen
Candidate Thomas Mulcair speaks at the NDP leadership convention at the Metro Toronto Convention Centre in Toronto, Ont. Friday, March 23, 2012.Kevin Van Paassen