Mir Hossein Moussavi and Mehdi Karroubi are leaders of Iran's opposition Green Movement.

穆萨维和卡鲁比是伊朗反对派绿色运动的领导人。

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The poll found that Ahmadinejad was leading his nearest opponent, the more reform-minded candidate Mir Hossein Moussavi, by a more than 2-to-1 margin, with almost a third undecided.

CNN: Commentary: Iranians want more democracy

Which brings us to the unlikely leader of the youth-dominated opposition, Mir Hossein Moussavi.

CNN: Opposition movement in Iran not over, experts say

However, one point must be made clear: The reformist movement represents a bigger and greater social phenomenon than the electoral campaign of opposition candidate Mir Hossein Moussavi and like-minded moderate conservative clerics.

CNN: Commentary: Iran's sons and daughters will win