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Iran’s President Hassan Rouhani, who is also a member of the Experts Assembly, waves to media with an ink-stained finger, after registering his candidacy for the February 26 elections of the assembly at interior ministry in Tehran, Iran, December 21, 2015 (Credit: AP Photo/Ebrahim Noroozi)

Iran's President Hassan Rouhani, who is also a member of the Experts Assembly, waves to media with an ink-stained finger, after registering his candidacy for the February 26 elections of the assembly at interior ministry in Tehran, Iran, December 21, 2015 (Credit: AP Photo/Ebrahim Noroozi)