Two of the strongest contenders in this year’s legislative elections are the Islamist Ennahda Movement, which emerged as the winner of the 2011 election; and Nidaa Tounes, founded in 2012 and led by 86-year-old Beji Caid Essebsi, who served under the previous autocratic regimes of Habib Bourguiba and Zine el-Abidin Ben Ali