Supporter of presidential candidate Rafsanjani holds up a campaign poster during a pre-election gathering in southern Tehran. A supporter of presidential candidate Akbar Hashemi Rafsanjani holds up a campaign poster during a pre-election gathering in southern Tehran June 21, 2005. Rafsanjani told Iranian students on Tuesday he would champion reforms that could be threatened by the hard-line policies of his surprise rival in a run-off presidential election. REUTERS/Morteza Nikoubazl