Going green: Mousavi supporters wear green and wave green, his trademark color, during a rally in Tehran on May 23. A reformist candidate, Mousavi draws much support from younger voters, who want to improve their country's international standing after the damage the firebrand Ahmadinejad wreaked. Critics say Mousavi was a hard-line revolutionary in the early years after the 1979 revolution and that he purged pro-Western academics from universities. Others say he is a changed man. "Mousavi evolved from a revolutionary to a pragmatic manager," Masoud Soltanifar, a former deputy governor of one of Iran's provinces, told the Washington Post.