Iran's supreme leader said Friday that the country's disputed presidential vote had not been rigged, sternly warning protesters of a crackdown if they continue massive demonstrations demanding a new election.Ayatollah Ali Khamenei sided with hardline President Mahmoud Ahmadinejad and offered no concessions to the opposition. He effectively closed any chance for a new vote by calling the June 12 election an "absolute victory."The speech created a stark choice for candidate Mir Hossein Mousavi and his supporters: Drop their demands for a new vote or take to the streets again in blatant defiance of the man endowed with virtually limitless powers under Iran's constitution.Khamenei accused foreign media and Western countries of trying to create a political rift and stir up chaos in Iran.