The Muslim Brotherhood has achieved a level of influence nearly unimaginable before the Arab Spring. The Brotherhood was the resounding victor in Egypt's 2011-2012 parliamentary elections, and six months later, a leader of the group was elected president. Yet the implications of the Brotherhood's rising power for the future of democratic governance, peace, and stability in the region is open to dispute. Drawing on more than one hundred in-depth interviews as well as Arabic language sources not previously accessed by Western researchers, Carrie Rosefsky Wickham traces the evolution of the...