This summer wasn’t easy for Toronto Mayor David Miller. After a 39-day civic strike that saw garbage pile up and public support plummet, Miller announced today that he won’t be running for office again next year. The decision comes as somewhat of a surprise. When Miller, who enjoyed widespread popularity after being elected in 2003, was asked earlier this month about what kind of opponent deputy premier George Smitherman would make, he replied: “I’m sure in the next election I’ll have an opponent, and look forward to debating the issues with whoever it is.” Along with Smitherman, other possible candidates include former provincial conservative leader John Tory.