SIX DEGREES OF SEPARATION:
How the U.S. Constitution protects liberty from the powerful’s dark impulses: In this excerpt from Separation of Powers, Cass Sunstein explains how the U.S. Constitution prevents such a concentration of authority from turning democracy into despotism. (Cass Sunstein, March 5, 2026, Big Think)
On its face, the Constitution aims to forbid the accumulation of all powers in the same hands. Of course, the idea of a king was foremost in the minds of those who fought the American Revolution and devised the founding document. But the separation of powers extends far beyond the rejection of the idea of kings.
Article I, section 1 of the Constitution says this: “All legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.” Article II, section 1 of the Constitution says this: “The executive Power shall be vested in a President of the United States of America.” Article III, section 1 of the Constitution says this: “The judicial Power of the United States shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish.”
These provisions establish the separation of powers. (So much for Carl Schmidt.) We might want to emphasize the word all in Article I and the word the in Articles II and III. The Constitution seems to contemplate that there is something called the executive power and another called the judicial power, and that they are vested in particular institutions. And if all legislative powers are vested in Congress, then they would seem to be vested nowhere else.
The separation of powers, it is called, but we should immediately be able to see that the term is too broad and undifferentiated. In a way, it is a misnomer. The separation of powers is a they, not an it. It is an umbrella concept, and it seems to include six separations of powers:
The legislature may not exercise the executive power.
The legislature may not exercise the judicial power.
The executive may not exercise the legislative power.
The executive may not exercise the judicial power.
The judiciary may not exercise the legislative power.
The judiciary may not exercise the executive power.
The six separations can be taken to include three sets of prohibitions. There are two things that the legislature cannot do, two things that the executive branch cannot do, and two things that the judiciary cannot do.
