U.S. CONSTITUTION – Separation of powers

THE U.S. CONSTITUTION envisioned a country in which no single person or group could hold too much power. As a result, the Constitution established three branches of government: executive, legislative and judicial. Each branch is separate and has its own responsibilities. In addition, each branch can check the power of the other branches. Despite its flaws, this system of checks and balances is considered one of the most effective models of government in world history.

Separation of powers is a political doctrine originating in the writings of Charles de Secondat, Baron de Montesquieu in The Spirit of the Laws, in which he argued for a constitutional government with three separate branches, each of which would have defined abilities to check the powers of the others. This philosophy heavily influenced the writing of the United States Constitution, according to which the Legislative, Executive, and Judicial branches of the United States government are kept distinct in order to prevent abuse of power. This United States form of separation of powers is associated with a system of checks and balances.

During the Age of Enlightenment, philosophers such as Montesquieu advocated the principle in their writings, whereas others, such as Thomas Hobbes, strongly opposed it. Montesquieu was one of the foremost supporters of separating the legislature, the executive, and the judiciary. His writings considerably influenced the opinions of the framers of the United States Constitution.

The Founding Fathers were well-acquainted with a long-held tenet of government: the accumulation of power by a single person or body of government is the greatest threat to liberty. In fact, a celebrated feature of the Constitution, the separation of powers doctrine, developed over the course of many centuries.

As early as 350 B.C., Greek philosopher Aristotle observed in the Politics that every government, no matter its form, performed three distinct functions: “the deliberative, the magisterial, and the judicative.” In modern terminology these activities correlate, respectively, to the legislative (law-making), executive (law-enforcing) and judicial (law interpretation) functions of government. While Aristotle identified these basic powers common to all governments, he did not necessarily suggest that they should be exercised by entirely different branches.

The principle that major governmental functions should be divided into different branches would be advanced centuries later. The French philosopher Baron de Montesquieu, “[t]he oracle…the celebrated Montesquieu,” as James Madison referred to him, advocated three distinct and separate branches in which the general powers of government should be lodged. While John Locke made the case for separating the legislative and executive powers, Montesquieu provided the Founders with a convincing defense for an independent judiciary:

“When the legislative and executive powers are united in the same person, or in the same body of magistrates, there can be no liberty… Again, there is no liberty, if the judiciary power be not separated from the legislative and executive. Were it joined with the legislative, the life and liberty of the subject would be exposed to arbitrary control; for the judge would then be the legislator. Were it joined to the executive power, the judge might behave with violence and oppression. There would be an end to everything, were the same man, or the same body, whether of the nobles or of the people, to exercise those three powers, that of enacting laws, that of executing the public resolutions, and of trying the causes of individuals” (Baron de Montesquieu, Spirit of Laws, 1748).

It was Montesquieu’s vision of a truly separated, tripartite system that the Founding Fathers would come to adopt at the Constitutional Convention. Article I, Section 1 of the U.S. Constitution vests legislative powers in a Congress of the United States, itself separated into a House of Representatives and a Senate. Article II, Section 1 vests executive authority in a President of the United States. Article III, Section 1 vests judicial authority in a single Supreme Court of the United States and “in such inferior Courts as the Congress may from time to time ordain and establish.”

During the ratification debates from 1787 to 1788, some critics charged that upon close inspection the separation of powers in Articles I-III of the Constitution were not as complete as Montesquieu appeared to advocate and would tend toward an accumulation of power in one branch or another over time. The president, for example, has the power to accept or reject a bill duly passed by Congress, a seemingly legislative power. For its part, the Senate may approve or reject a presidential appointment to his own branch, a seemingly executive power.

The Constitution’s critics were right; the Framers did not propose a “pure” separation of powers. Madison retorted that a “pure” separation of powers was neither what Montesquieu intended nor practical:

“[Montesquieu] did not mean that these [branches] ought to have no partial agency in, or no control over, the acts of each other. His meaning…can amount to no more than this, that where the whole power of one [branch] is exercised by the hands that hold the whole power of another, the fundamental principles of a free constitution are subverted. [T]here is not a single instance in which the several [branches] of power have been kept absolutely separate and distinct” (James Madison, Federalist No. 47, 1788).

Implicit in Madison’s argument was an interesting challenge to the very doctrine of separation of powers: what will prevent the accumulation of power in the absence of pure separation? The answer was to be found in a unique feature of the Constitution: the pairing of separated powers with an intricate system of checks and balances designed to give each branch fortifications against encroachments by the others. The “Madisonian Model,” as it is now generally called, gave genuine and practical life to both the observation of Aristotle and the vision of Montesquieu.

At the heart of the Madisonian Model is ambition. A desire for power, influence, and authority is embedded deeply in human nature. For many people, the very word “ambition” smacks of greed, corruption, or a win-at-all-cost mentality.

Madison saw it differently. Ambition, if properly harnessed by good judgment and rooted in an appreciation for the benefits of constitutional republicanism, could work to advance the public good. It could be beneficial not only to the effective separation of powers but to limited government and liberty itself. In Federalist No. 51, James Madison stated:

“The great security against a gradual concentration of the several powers in the same [branch], consists in giving to those who administer each [branch], the necessary constitutional means, and personal motives, to resist encroachments of the others…Ambition must be made to counteract ambition. The interest of the man must be connected with the constitutional rights of the place” (James Madison, Federalist No. 51, 1788).

In our system of separated powers, each branch of government is not only given a finite amount of power and authority but arrives at it through entirely different modes of election. Madison theorized that as it is the Constitution that grants each branch its power, honorable ambition that ultimately serves the highest interests of the people could work to maintain the separation. In other words, since Congress is not dependent on the presidency or the courts for either its authority or its election to office, members will jealously guard its power from encroachments by the other two branches and vice versa. For Madison, this organization of powers answered the great challenge of framing a limited government of separated powers: “first enabl[ing] the government to control the governed…and in the next place, obling[ing] it to control itself” (James Madison, Federalist No. 51, 1788).

What does Madison’s theory look like in practice? While it is the legislative branch that makes law, the president may check Congress by vetoing bills Congress has passed, preventing them from being enacted. In turn, Congress may enact a law over the president’s objection by overriding his veto with a vote of two-thirds of both the House and Senate. The Supreme Court can then check both branches by declaring a law unconstitutional (known as judicial review), but the Supreme Court itself is checked by virtue of the fact the president and Senate appoint and approve, respectively, members of the Court. Furthermore, both the president and federal judges are subject to impeachment by Congress for “treason, bribery, or other high crimes and misdemeanors” (United States Constitution: Article II, Section 4).

The President may check Congress by vetoing bills Congress has passed. Congress may override the president’s veto with a vote of two-thirds of both Houses. The Supreme Court can then check both branches by declaring a law unconstitutional.

By and large, Madison’s model remains constitutionally intact, but many people wonder if our system still balances power, in reality and in practice, to the extent that he envisioned. Our checks and balances system reflects an understanding about republican government, held by many Founders, that the legislative branch should be the superior branch and, therefore, most in need of restraint. They reasoned that this is the case because “We the People” govern ourselves through the laws we give ourselves through our elected representatives in the legislative branch.

“The legislative [branch] derives superiority… [i]ts constitutional powers [are] more extensive, and less susceptible to precise limits… [it] is not possible to give each [branch] an equal [number of checks on the other branches]” (James Madison, Federalist No. 48, 1788).

Some observers maintain that this conception of the legislative as the predominant branch is obsolete in modern times. The executive and judicial branches have expanded their powers beyond the Founders’ expectations over time (i.e. executive orders, the role of the Supreme Court as the arbiter of laws at every level, not just the federal level.) Is Madison’s assumption of legislative superiority true today? If you were asked to pick a branch to describe as “most powerful” would your answer mirror Madison’s?

Despite disagreement as to how well it has worked, one characteristic of the checks and balances system cannot be denied: it encourages constant tension and conflict between the branches. That conflict, however, is frequently beneficial, and our Constitution smiles upon it.

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