Supporters of Iranian reformist presidential candidate Mir Hossein Mousavi hold up posters bearing his portrait and green balloons during a pro-reform electoral campaign rally at Badr stadium in southern Tehran on June 8, 2009. The former premier has emerged as his main rival of incumbent hardliner Mahmoud Ahmadinejad in the June 12 presidential election. Green, associated in Iran with descendants of the Prophet Mohammad, has been chosen as the campaign color of the moderate candidate, who was the Islamic republic's prime minister during the war with Iraq in the 80s. By Behrouz Mehri/AFP/Getty.