Sticking around: Posters of moderate candidate Mehdi Karroubi gaze at women strolling in downtown Tehran on May 26. "Mahmoud Ahmadinejad" is sprayed in black Farsi letters across the posters. Karroubi could drain votes from Mousavi, the reformist, leading some to insist that he withdraw in order to consolidate the reformist vote with Mousavi. Karroubi has remained determined, however. "I will never withdraw. ... I believe the larger the number of candidates, the better," he told a news conference.