To what extent should the doctrine of the separation of powers evolve in light of recent shifts in constitutional design and practice? New constitutions often include newer forms of rights - such as socio-economic and environmental rights - and are written with an explicitly transformative purpose. The practice of the separation of powers has also changed, as the executive has tended to gain power and deliberative bodies like legislatures have often been thrown into a state of crisis. By engaging widespread comparative experiences from Malawi, to Colombia, Mexico to South Africa, Hungary...