As polling stations opened for mayoral races across Israel on Tuesday, polls show that the closely watched races in Jerusalem and Tel Aviv were tightening. In the capital, secular candidate Nir Barkat's recent fourteen point margin over ultra-Orthodox challenger Meir Porush has been cut to nine percentage points. In Tel Aviv, Mayor Ron Huldai is facing a surprisingly strong bid by Dov Khenin, a Member of Knesset of the leftist Hadash party. 11/11/08