He's been labeled by many as the "reformist," a man who can take Iran beyond the truculent anti-Western rhetoric of President Mahmoud Ahmadinejad.
So, when Iran's government announced over the weekend that Mir Hossein Moussavi had lost in his bid to become the country's next president, young Iranians took to the streets by the thousands alleging ballot fraud.
Thousands of others around the globe championed the cause on social-networking Web sites and agreed to wear green on Monday in solidarity with Moussavi's supporters. Read full article »
CNN's Saeed Ahmed in Atlanta contributed to this report.