In pictures: Ontario Premier Dalton McGuinty's career
Ontario Premier Dalton McGuinty resigned as premier and leader of the Ontario Liberals.
Ontario Liberal leader Dalton McGuinty and his wife Terri wave as they leave a gathering at the Vaughan-King-Aurora campaign headquaters in Toronto, Ont. Wednesday, Sept. 3, 2003.JONATHAN HAYWARD/The Canadian Press
Ontario Liberal leader Dalton McGuinty celebrates with his wife Terri at a victory celebration, in Ottawa, October 2, 2003.SHAUN BEST/Reuters
Ontario Premier Dalton McGuinty (left) speaks to reporters as P.E.I. Premier Pat Binns and Quebec Premier Jean Charest look on after the Council of the Federation meeting in Quebec City on Oct. 24, 2003.JACQUES BOISSINOT/The Canadian Press
Ontario premier-designate Dalton McGuinty attends one of the first meetings with his caucus at Queen's Park on Oct. 8, 2003, after defeating the Progressive Conservative government in the recent provincial election.Louie Palu/The Globe and Mail
Premier Dalton McGuinty announced a $500-million assistance package for the auto industry during a visit to McMaster University on April.14, 2004.Fred Lum/The Globe and Mail
Dalton McGuinty, premier of Ontario, at Queen's Park on Nov. 5, 2003John Morstad/The Globe and Mail
Premier Dalton McGuinty during a media press conference/scrum after Throne Speech was read in the Ontario Legislature on Nov. 20, 2003.Fred Lum/The Globe and Mail
Ontario Premier Dalton McGuinty holding a traditional light bulb as he speaks to children on April 19, 2004.Louie Palu/The Globe and Mail
Ontario Premier Dalton McGuinty, right, is pictured at a news conference at Queens Park in Toronto on Friday, June 15, 2012. The premier spoke to reporters about his threat to call for an election over the Ontario budget.Chris Young/The Canadian Press
Ontario Premier Dalton McGuinty asks for his glasses while visiting a grade three class at Pierre Elliott Trudeau elementary school in Toronto, September 04, 2012 on the first day of school.Deborah Baic/The Globe and Mail
Spencer Griffiths takes a few shots on Premier Dalton McGuinty in the driveway of his North York home in Toronto, Ont. Wednesday, March 28, 2012.Kevin Van Paassen/The Globe and Mail
Ontario Premier Dalton McGuinty speaks to the media in the Library of St. Helen Catholic School, after touring the full day kindergarten area, in Toronto, August 15, 2012.J.P. MOCZULSKI/The Globe and Mail
Ontario Premier Dalton McGuinty, right, and TCDSB Chair Ann Andrachuk, tour the library and full day kindergarten area, which are currently under construction, at St. Helen Catholic School in Toronto, August 15, 2012.J.P. MOCZULSKI/The Globe and Mail
Ontario Premier Dalton McGuinty (R) directs Toronto Mayor Rob Ford as they tour the construction site for the Eglinton-Scarborough Crosstown rail line on Nov. 9, 2011.Moe Doiron/The Globe and Mail
Ontario Premier Dalton McGuinty is seen during the spring session at Queen's Park in Toronto, Ont. February 22, 2011.Kevin Van Paassen/The Globe and Mail
Liberal leader Dalton McGuinty celebrates his victory at the Liberal party event in Ottawa following the provincial election on Oct. 6, 2011.Peter Power/The Globe and Mail
Photographs of Ontario premier Dalton McGuinty prior to and during a Globe and Mail interview at his Queen's Park office on Oct. 4, 2010.Fred Lum/The Globe and Mail
Premier Dalton McGuinty, left, and mayor Rob Ford meet at Queen's Park in Toronto on Dec. 7, 2010Kevin Van Paassen/The Globe and Mail
California Governor Arnold Schwarzenegger speaks at MaRs (Medical and Relation Sciences Centre) with Premier Dalton McGuinty after a tour of the building. The Governor and the Premier spoke of the importance of stem cell research. Schwarzenegger wraps up his tour of Toronto and makes his way to Ottawa this afternoon.Charla Jones/The Globe and Mail
Ontario Premier Dalton McGuinty speaks during a press conference held at the Mississauga Transit Main Office. During the press conference, McGuinty pledged $17.5-billion for rapid transit projects across greater Toronto and Hamilton in a massive pre-election move that provides a massive boost to the TTC's ambitious light-rail network plans and calls for the extension of the Yonge subway line.Charla Jones/The Globe and Mail
Premier Dalton McGuinty and newly appointed Finance Minister Dwight Duncan during the throne speech on Oct.12, 2005.Tibor Kolley/The Globe and Mail
Ontario's Liberal Premier Dalton McGuinty (left) walks out of the Government Caucus room with his wife Terri in the Ontario Legislature on Monday October 15, 2012, after resigning.Chris Young/The Globe and Mail
Ontario Premier Dalton McGuinty walks with his wife Terri after making an announcement to resign from the leadership of the Ontario provincial Liberal party at Queen's Park in Toronto, October 15, 2012.MARK BLINCH/Reuters
Ontario's Liberal Premier Dalton McGuinty (left) walks out of the Government Caucus room with his wife Terri in the Ontario Legislature on Monday October 15, 2012, after resigning.Chris Young/The Globe and Mail
Ontario Premier McGuinty speaks to the media after making an announcement to resign from the leadership of the Ontario provincial Liberal party at Queen's Park in Toronto on Oct. 15, 2012.MARK BLINCH/Reuters