Ultimately, a win for Ahmadinejad may augur a dangerous showdown with Washington and Jerusalem, with enormous consequences to Iran in the long run. Alternatively, a win for one of the reformers could signal a stand down from confrontation and usher in a long period of tentative engagement with the west and major reforms at home that could set the Islamic Republic on a more moderate road. The whole world is watching which of these two roads Iran’s voters prefer from their Supreme Leader.