He has been trying to make himself indispensable by the grandiose issues , but his fate is much more tied to these bread and butter issues , '' said Vali Nasr , the author of '' The Shia Revival '' and a professor of Middle Eastern politics at the Naval Postgraduate School in Monterey , Calif. '' It 's not a fall for Ahmadinejad , but it 's clearly a stumble ; there is no momentum coming out of his election in 2005 . ''