This week, Cuba begins an important transition. On April 19, 2018, Rau?l Castro steps down as head of state. An as-yet unnamed suc- cessor elected by Cuba’s National Assembly—presumably First Vice President Miguel Di?az-Canel—will take his place. We do not know whether Rau?l Castro will remain a member of the Council of State (the highest executive branch of the government, over which the President presides). He will continue as First Secretary of the Cuban Communist Party through 2021, separating leadership of government administra- tion and the Party bureaucracy for the first time. But, however partial, Castro’s retirement portends the ultimate passing of the Revolution’s “founding generation” from power. Rumors that he is planning to move to Santiago de Cuba, far from the seat of national government in Havana, suggest, at the very least, a symbolic break.