The Arab Spring has brought the Muslim Brotherhood to power in Tunisia and Egypt, and may yet in Libya and Syria. Observers have speculated on how they will govern now that they finally lead governments where the practical problems of managing public affairs will confront them. But we need not speculate too much, since the Muslim Brotherhood has governed one country for 23 years: Sudan. Omar al-Bashir, president of Sudan, and Hasan al-Turabi (one of the pre-eminent Islamist theologians and political theorists of the past half century) are the leaders of Sudan's Muslim Brotherhood. Bashir took power in a coup in June 1989 planned and organized by Turabi.