TEHRAN (Reuters) - Iran has banned an ally of the countrys Opposition leader Mir Hossein Mousavi from leaving the Islamic state, the official IRNA news agency reported on Saturday. Abolfazl Fateh, head of Mousavis media office, said the ban would not change his political stance, adding he was banned from leaving Iran because of his role in post-election developments. Such pressures can not push people like me to change our political stances, he told IRNA. The imposed ban will not change my political views.