Toronto Mayor Rob Ford walks through a busy media scrum as he walks to his office during a break in a Capital and Operating Budgets meeting at City Hall in Toronto, January 22, 2014. Ford, who gained global notoriety after a well-publicized battle with addiction, was admitted to hospital with a tumor in his abdomen on Wednesday, throwing his campaign for re-election into doubt. REUTERS/Mark Blinch 

Toronto Mayor Rob Ford addresses supporters on the podium during his campaign launch party in Toronto, April 17, 2014. Ford is seeking re-election in the Toronto municipal election, set for October 27, 2014. REUTERS/Mark Blinch 

Mayor Rob Ford (R) laughs as he takes part in a Toronto Mayoral election debate with candidates Olivia Chow (L) and David Soknacki in Toronto, March 26, 2014. REUTERS/Mark Blinch 

Toronto Mayor Rob Ford runs from cameras after exiting an executive council meeting in Toronto, March 19, 2014. Ford, who made global headlines last year after admitting he had smoked crack cocaine, was caught up in fresh controversy on Monday after a new video showed him agitated and apparently swearing outside city hall. REUTERS/Mark Blinch 

Toronto Mayor Rob Ford laughs in front of a sign that says "Keep Calm and Carry On" at City Hall in Toronto, March 19, 2014. Ford, who made global headlines last year after admitting he had smoked crack cocaine, was caught up in fresh controversy on Monday after a new video showed him agitated and apparently swearing outside city hall. REUTERS/Mark Blinch 

Toronto's Chief Budget Officer Councillor Frank Di Giorgio (L) shares a moment with Toronto Mayor Rob Ford during a budget meeting at City Hall in Toronto, January 30, 2014. REUTERS/Aaron Harris 

Toronto Mayor Rob Ford returns to his office in gym attire during a break in an executive committee meeting at City Hall in Toronto, December 5, 2013. REUTERS/Aaron Harris 

Toronto Mayor Rob Ford returns following a break in an executive committee meeting at City Hall in Toronto, December 5, 2013. REUTERS/Aaron Harris 

Toronto Mayor Rob Ford laughs during council beside councillor Giorgio Mammoliti at City Hall in Toronto, November 14, 2013. Embattled mayor Ford, under huge pressure to quit after he admitted smoking crack cocaine, said on Thursday he was getting help for a drinking problem, but offered no indication that he might step down. Ford also expressed remorse for an obscene outburst he made earlier in the day when denying an allegation he had made sexual overtures to a female member of his staff. REUTERS/Mark Blinch 

Toronto Mayor Rob Ford yells at reporters and photographers to get off of his property in front of his house in Toronto October 31, 2013. Ford denied allegations earlier this year that he was caught smoking crack cocaine on camera. Evidence in a case that police used to obtain search warrants in the arrest of Ford's occasional driver Alessandro Lisi on drug charges are expected to be made public on Thursday. REUTERS/Mark Blinch 

Toronto Mayor Rob Ford attends a gay rights flag raising event at Toronto City Hall May 17, 2013. Ford on Friday denied allegations that he smoked crack cocaine. Reporters for the Toronto Star newspaper and Gawker Media said late Thursday they had watched a cellphone video that appears to show Ford smoking crack. The video is allegedly being shopped around for about $100,000 by people said to be involved in the drug trade. Reuters could not independently confirm the existence of the video. REUTERS/Brett Gundlock