Iranian voters will decide the fate of moderate President Hassan Rouhani and his policy of engagement with the West on Friday as he goes head-to-head with hardline cleric Ebrahim Raisi.<br/><br/>Rouhani has spent four years trying to pull Iran out of its global isolation, reaching a 2015 deal with world powers that ended some sanctions in exchange for curbs to its nuclear<br/>programme. Raisi has agreed to stick by the nuclear accord.<br/><br/>Two other candidates, conservative Tehran mayor Mohammad Bagher Ghalibaf and reformist Eshaq Jahangiri, dropped out from the race this week.