The Principle of the Separation of Powers

The separation of powers is one of the most cherished principles of constitutional government in the Western tradition. Despite its prestigious status, however, it has always been controversial. It has been attacked for being inadequate to account for institutional realities; for being inapplicable to parliamentary systems; for lacking a convincing normative grounding and even for being harmful, inasmuch as it hampers both the immediate enforcement of popular will and efficient political leaders