Triumphant Rouhani faces battles at home after Iran nuclear deal

By Sam Wilkin DUBAI (Reuters) - Iran's nuclear deal with world powers on Tuesday marks a triumph for President Hassan Rouhani, an establishment insider who staked his reputation on engaging pragmatically with the West and had to see off challenges from conservative factions. As Iran's negotiating team crisscrossed the globe to seal the nuclear deal, the 66-year-old cleric worked tirelessly at home to keep up support for an agreement and convince all sectors of Iranian society that it was in thei