Separation of powers under the United States Constitution - wikipedia Separation of powers under the United States Constitution This article is about the separation of powers specifically in the United States. For the theory of separation of powers, see separation of powers. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( February 2015 ) The United States Capitol dome as seen from the Supreme Court Building Play media U.S. Supreme Court Justice Antonin Scalia testified before the Senate Judiciary Committee about separation of powers and checks and balances of the U.S. Government 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. Strict separation of powers did not operate in the United Kingdom, the political structure of which served in most instances as a model for the government created by the U.S. Constitution. Under the UK Westminster system, based on parliamentary sovereignty and responsible government, Parliament ( consisting of the Sovereign ( King - in - Parliament ), House of Lords and House of Commons ) was the supreme lawmaking authority. The executive branch acted in the name of the King ( `` His Majesty 's Government '' ), as did the judiciary. The King 's Ministers were in most cases members of one of the two Houses of Parliament, and the Government needed to sustain the support of a majority in the House of Commons. One minister, the Lord Chancellor, was at the same time the sole judge in the Court of Chancery and the presiding officer in the House of Lords. Therefore, it may be seen that the three branches of British government often violated the strict principle of separation of powers, even though there were many occasions when the different branches of the government disagreed with each other. Some U.S. states did not observe a strict separation of powers in the 18th century. In New Jersey, the Governor also functioned as a member of the state 's highest court and as the presiding officer of one house of the New Jersey Legislature. The President of Delaware was a member of the Court of Appeals ; the presiding officers of the two houses of the state legislature also served in the executive department as Vice Presidents. In both Delaware and Pennsylvania, members of the executive council served at the same time as judges. On the other hand, many southern states explicitly required separation of powers. Maryland, Virginia, North Carolina and Georgia all kept the branches of government `` separate and distinct. '' Contents 1 Legislative power 2 Executive power 3 Judicial power 4 Checks and balances 4.1 Executive 4.2 Judicial 5 Equality of the branches 6 Views on separation of powers 7 Judicial independence 8 See also 9 References 10 External links Legislative power Congress has the sole power to legislate for the United States. Under the nondelegation doctrine, Congress may not delegate its lawmaking responsibilities to any other agency. In this vein, the Supreme Court held in the 1998 case Clinton v. The city of New York that Congress could not delegate a `` line - item veto '' to the President, by powers vested in the government by the Constitution. Where Congress does not make great and sweeping delegations of its authority, the Supreme Court has been less stringent. One of the earliest cases involving the exact limits of non-delegation was Wayman v. Southard 23 U.S. ( 10 Wet. ) 1, 42 ( 1825 ). Congress had delegated to the courts the power to prescribe judicial procedure ; it was contended that Congress had thereby unconstitutionally clothed the judiciary with legislative powers. While Chief Justice John Marshall conceded that the determination of rules of procedure was a legislative function, he distinguished between `` important '' subjects and mere details. Marshall wrote that `` a general provision may be made, and power is given to those who are to act under such general provisions, to fill up the details. '' Marshall 's words and future court decisions gave Congress much latitude in delegating powers. It was not until the 1930s that the Supreme Court held a delegation of authority unconstitutional. In a case involving the creation of the National Recovery Administration called A.L.A. Schechter Poultry Corp. v. The United States, 295 U.S. 495 ( 1935 ), Congress could not authorize the president to formulate codes of `` fair competition. '' It was held that Congress must set some standards governing the actions of executive officers. The Court, however, has deemed that phrases such as `` just and reasonable, '' `` public interest '' and `` public convenience '' suffice. Executive power Executive power is vested, with exceptions and qualifications, in the President. By law ( Section 2. ) the president becomes the Commander in Chief of the Army and Navy, Militia of several states when called into service, has power to make treaties and appointments to office `` with the Advice and Consent of the Senate, '' receive Ambassadors and Public Ministers, and `` take care that the laws be faithfully executed '' ( Section 3. ) By using these words, the Constitution does not require the president to personally enforce the law ; rather, officers subordinate to the president may perform such duties. The Constitution empowers the president to ensure the faithful execution of the laws made by Congress and approved by the President. Congress may itself terminate such appointments, by impeachment, and restrict the president. Bodies such as the War Claims Commission ( created by the War Claims Act of 1948 ), the Interstate Commerce Commission, and the Federal Trade Commission -- all quasi-judicial -- often have direct Congressional oversight. Congress often writes legislation to restrain executive officials to the performance of their duties, as laid out by the laws Congress passes. In Immigration and Naturalization Service v. Chadha ( 1983 ), the Supreme Court decided ( a ) The prescription for legislative action in Art. I, § 1 -- requiring all legislative powers to be vested in a Congress consisting of a Senate and a House of Representatives -- and § 7 -- requiring every bill passed by the House and Senate, before becoming law, to be presented to the president, and, if he disapproves, to be repassed by two - thirds of the Senate and House -- represents the Framers ' decision that the legislative power of the Federal Government be exercised in accord with a single, finely wrought and exhaustively considered procedure. This procedure is an integral part of the constitutional design for the separation of powers. Further rulings clarified the case ; even both Houses acting together can not override Executive vetos without a ​ ⁄ majority. Legislation may always prescribe regulations governing executive officers. Judicial power See also : Article I and Article III tribunals and Jurisdiction stripping Judicial power -- the power to decide cases and controversies -- is vested in the Supreme Court and inferior courts established by Congress. The judges must be appointed by the president with the advice and consent of the Senate, hold office during good behavior and receive compensations that may not be diminished during their continuance in office. If a court 's judges do not have such attributes, the court may not exercise the judicial power of the United States. Courts exercising the judicial power are called `` constitutional courts. '' Congress may establish `` legislative courts, '' which do not take the form of judicial agencies or commissions, whose members do not have the same security of tenure or compensation as the constitutional court judges. Legislative courts may not exercise the judicial power of the United States. In Murray 's Lessee v. Hoboken Land & Improvement Co. ( 1856 ), the Supreme Court held that a legislative court may not decide `` a suit at the common law, or in equity, or admiralty, '' as such a suit is inherently judicial. Legislative courts may only adjudicate `` public rights '' questions ( cases between the government and an individual and political determinations ). Checks and balances Legislative Writes and enacts laws Enacts taxes, authorizes borrowing, and sets the budget Has sole power to declare war May start investigations, especially against the executive branch The Senate considers presidential appointments of judges and executive department heads The Senate ratifies treaties The House of Representatives may impeach, and the Senate may remove, executive and judicial officers Creates federal courts except for the Supreme Court, and sets the number of justices on the Supreme Court May override presidential vetoes Executive May veto laws Vice president presides over the Senate Wages war at the direction of Congress ( Congress makes the rules for the military ) Makes decrees or declarations ( for example, declaring a state of emergency ) and promulgates lawful regulations and executive orders Influences other branches of its agenda with the State of the Union address. Appoints judges and executive department heads Has power to grant pardons to convicted persons, except in cases of impeachment Executes and enforces orders of the court through federal law enforcement. Judicial Determines which laws Congress intended to apply to any given case Determines whether a law is unconstitutional. ( The power of judicial review is not expressly granted in the Constitution, but was held by the judiciary to be implicit in the constitutional structure in Marbury v. Madison ( 1803 ). ) Determines how Congress meant the law to apply to disputes Determines how a law acts to determine the disposition of prisoners Determines how a law acts to compel testimony and the production of evidence Determines how laws should be interpreted to assure uniform policies in a top - down fashion via the appeals process, but gives discretion in individual cases to low - level judges. ( The amount of discretion depends upon the standard of review, determined by the type of case in question. ) Polices its own members Executive The president exercises a check over Congress through his power to veto bills, but Congress may override any veto ( excluding the so - called `` pocket veto '' ) by a two - thirds majority in each house. When the two houses of Congress can not agree on a date for adjournment, the president may settle the dispute. Either house or both houses may be called into emergency session by the president. The Vice President serves as president of the Senate, but he may only vote to break a tie. The president, as noted above, appoints judges with the Senate 's advice and consent. He also has the power to issue pardons and reprieves. Such pardons are not subject to confirmation by either the House of Representatives or the Senate, or even to acceptance by the recipient. The President is not mandated to carry out the orders of the Supreme Court. The Supreme Court does not have any enforcement power ; the enforcement power lies solely with the executive branch. Thus, the executive branch can place a check on the Supreme Court through refusal to execute the orders of the court. For example, in Worcester v. Georgia, President Jackson refused to execute the orders of the Supreme Court. The president is the civilian Commander in Chief of the Army and Navy of the United States. He has the authority to command them to take appropriate military action in the event of a sudden crisis. However, only the Congress is explicitly granted the power to declare war per se, as well as to raise, fund and maintain the armed forces. Congress also has the duty and authority to prescribe the laws and regulations under which the armed forces operate, such as the Uniform Code of Military Justice, and requires that all Generals and Admirals appointed by the president be confirmed by a majority vote of the Senate before they can assume their office. Judicial Courts check both the executive branch and the legislative branch through judicial review. This concept is not written into the Constitution, but was envisioned by many of the Constitution 's Framers ( for example, The Federalist Papers mention it ). The Supreme Court established a precedent for judicial review in Marbury v. Madison. There were protests by some at this decision, born chiefly of political expediency, but political realities in the particular case paradoxically restrained opposing views from asserting themselves. For this reason, precedent alone established the principle that a court may strike down a law it deems unconstitutional. A common misperception is that the Supreme Court is the only court that may determine constitutionality ; the power is exercised even by the inferior courts. But only Supreme Court decisions are binding across the nation. Decisions of a Court of Appeals, for instance, are binding only in the circuit over which the court has jurisdiction. The power to review the constitutionality of laws may be limited by Congress, which has the power to set the jurisdiction of the courts. The only constitutional limit on Congress ' power to set the jurisdiction of the judiciary relates to the Supreme Court ; the Supreme Court may exercise only appellate jurisdiction except in cases involving states and cases affecting foreign ambassadors, ministers or consuls. The Chief Justice presides in the Senate during a president 's impeachment trial. The rules of the Senate, however, generally do not grant much authority to the presiding officer. Thus, the Chief Justice 's role in this regard is a limited one. Equality of the branches This section possibly contains original research. Please improve it by verifying the claims made and adding inline citations. Statements consisting only of original research should be removed. ( February 2015 ) The Constitution does not explicitly indicate the pre-eminence of any particular branch of government. However, James Madison wrote in Federalist 51, regarding the ability of each branch to defend itself from actions by the others, that `` it is not possible to give to each department an equal power of self - defense. In republican government, the legislative authority necessarily predominates. '' One may claim that the judiciary has historically been the weakest of the three branches. In fact, its power to exercise judicial review -- its sole meaningful check on the other two branches -- is not explicitly granted by the U.S Constitution. The U.S. Supreme Court exercised its power to strike down congressional acts as unconstitutional only twice prior to the Civil War : in Marbury v. Madison ( 1803 ) and Dred Scott v. Sandford ( 1857 ). The Supreme Court has since then made more extensive use of judicial review. Throughout America 's history dominance of one of the three branches has essentially been a see - saw struggle between Congress and the president. Both have had periods of great power and weakness such as immediately after the Civil War when republicans had a majority in Congress and were able to pass major legislation and shoot down most of the president 's vetoes. They also passed acts to essentially make the president subordinate to Congress, such as the Tenure of Office Act. Johnson 's later impeachment also cost the presidency much political power. However the president has also exercised greater power largely during the 20th century. Both Roosevelts greatly expanded the powers of the president and wielded great power during their terms. The first six presidents of the United States did not make extensive use of the veto power : George Washington only vetoed two bills, James Monroe one, and John Adams, Thomas Jefferson and John Quincy Adams none. James Madison, a firm believer in a strong executive, vetoed seven bills. None of the first six Presidents, however, used the veto to direct national policy. It was Andrew Jackson, the seventh President, who was the first to use the veto as a political weapon. During his two terms in office, he vetoed 12 bills -- more than all of his predecessors combined. Furthermore, he defied the Supreme Court in enforcing the policy of ethnically cleansing Native American tribes ( `` Indian Removal '' ) ; he stated ( perhaps apocryphally ), `` John Marshall has made his decision. Now let him enforce it ! '' Some of Jackson 's successors made no use of the veto power, while others used it intermittently. It was only after the Civil War that presidents began to use the power to truly counterbalance Congress. Andrew Johnson, a Democrat, vetoed several Reconstruction bills passed by the `` Radical Republicans. '' Congress, however, managed to override fifteen of Johnson 's twenty - nine vetoes. Furthermore, it attempted to curb the power of the presidency by passing the Tenure of Office Act. The Act required Senate approval for the dismissal of senior Cabinet officials. When Johnson deliberately violated the Act, which he felt was unconstitutional ( Supreme Court decisions later vindicated such a position ), the House of Representatives impeached him ; he was acquitted in the Senate by one vote. Grover Cleveland worked to restore power to the Presidency after Andrew Johnson 's impeachment. Johnson 's impeachment was perceived to have done great damage to the presidency, which came to be almost subordinate to Congress. Some believed that the president would become a mere figurehead, with the Speaker of the House of Representatives becoming a de facto prime minister. Grover Cleveland, the first Democratic President following Johnson, attempted to restore the power of his office. During his first term, he vetoed over 400 bills -- twice as many bills as his 21 predecessors combined. He also began to suspend bureaucrats who were appointed as a result of the patronage system, replacing them with more `` deserving '' individuals. The Senate, however, refused to confirm many new nominations, instead demanding that Cleveland turn over the confidential records relating to the suspensions. Cleveland steadfastly refused, asserting, `` These suspensions are my executive acts... I am not responsible to the Senate, and I am unwilling to submit my actions to them for judgment. '' Cleveland 's popular support forced the Senate to back down and confirm the nominees. Furthermore, Congress finally repealed the controversial Tenure of Office Act that had been passed during the Johnson Administration. Overall, this meant that Cleveland 's Administration marked the end of presidential subordination. Several 20th - century presidents have attempted to greatly expand the power of the presidency. Theodore Roosevelt, for instance, claimed that the president was permitted to do whatever was not explicitly prohibited by the law -- in direct contrast to his immediate successor, William Howard Taft. Franklin Delano Roosevelt held considerable power during the Great Depression. Congress had granted Franklin Roosevelt sweeping authority ; in Panama Refining v. Ryan, the Court for the first time struck down a Congressional delegation of power as violative of the doctrine of separation of powers. The aforementioned Schechter Poultry Corp. v. United States, another separation of powers case, was also decided during Franklin Roosevelt 's presidency. In response to many unfavorable Supreme Court decisions, Roosevelt introduced a `` Court Packing '' plan, under which more seats would be added to the Supreme Court for the president to fill. Such a plan ( which was defeated in Congress ) would have seriously undermined the judiciary 's independence and power. Richard Nixon used national security as a basis for his expansion of power. He asserted, for example, that `` the inherent power of the President to safeguard the security of the nation '' authorized him to order a wiretap without a judge 's warrant. Nixon also asserted that `` executive privilege '' shielded him from all legislative oversight ; furthermore, he impounded federal funds ( that is to say, he refused to spend money that Congress had appropriated for government programs ). In the specific cases aforementioned, however, the Supreme Court ruled against Nixon. This was also because of an ongoing criminal investigation into the Watergate tapes, even though they acknowledged the general need for executive privilege. Since then, Nixon 's successors have sometimes asserted that they may act in the interests of national security or that executive privilege shields them from Congressional oversight. Though such claims have in general been more limited than Nixon 's, one may still conclude that the presidency 's power has been greatly augmented since the 18th and 19th centuries. Views on separation of powers Many political scientists believe that separation of powers is a decisive factor in what they see as a limited degree of American exceptionalism. In particular, John W. Kingdon made this argument, claiming that separation of powers contributed to the development of a unique political structure in the United States. He attributes the unusually large number of interest groups active in the United States, in part, to the separation of powers ; it gives groups more places to try to influence, and creates more potential group activity. He also cites its complexity as one of the reasons for lower citizen participation. Judicial independence Separation of powers has again become a current issue of some controversy concerning debates about judicial independence and political efforts to increase the accountability of judges for the quality of their work, avoiding conflicts of interest, and charges that some judges allegedly disregard procedural rules, statutes, and higher court precedents. Many legislators hold the view that separation of powers means that powers are shared among different branches ; no one branch may act unilaterally on issues ( other than perhaps minor questions ), but must obtain some form of agreement across branches. That is, it is argued that `` checks and balances '' apply to the Judicial branch as well as to the other branches -- for example, in the regulation of attorneys and judges, and the establishment by Congress of rules for the conduct of federal courts, and by state legislatures for state courts. Although in practice these matters are delegated to the Supreme Court, the Congress holds these powers and delegates them to the Supreme Court only for convenience in light of the Supreme Court 's expertise, but can withdraw that delegation at any time. On the other side of this debate, many judges hold the view that separation of powers means that the Judiciary is independent and untouchable within the judicial sphere. In this view, separation of powers means that the Judiciary alone holds all powers relative to the judicial function and that the Legislative and Executive branches may not interfere in any aspect of the Judicial branch. An example of the second view at the state level is found in the Florida Supreme Court holding that only the Florida Supreme Court may license and regulate attorneys appearing before the courts of Florida, and only the Florida Supreme Court may set rules for procedures in the Florida courts. The State of New Hampshire also follows this system. See also Constitution of the Roman Republic Commander - in - Chief Fourth branch of government Signing statement The Imperial Presidency Unitary executive theory References Davis, Zoe ( 2001 ). `` Presidential Vetoes, 1989 -- 2000 '' ( PDF ). United States Senate. Dean, John W. ( 2004 ). `` The U.S. Supreme Court and The Imperial Presidency ''. Find Law. Kilman, Johnny H. & Costello, George, eds. ( 2000 ). The Constitution of the United States of America : Analysis and Interpretation. Washington, DC : Government Printing Office. Archived from the original on 2008 - 12 - 11. Kunhardt, Philip B., Jr. ; Kunhardt, Philip B., III & Kunhardt, Peter W. ( 1999 ). The American President. New York : Penguin. Madison, James ( 1788 ). `` The Particular Structure of the New Government and the Distribution of Power Among Its Different Parts ''. Archived from the original on 2004 - 06 - 17. Calabresi, Steven G. ( 2008 ). `` The Great Divorce : The Current Understanding of Separation of Powers and the Original Meaning of the Incompatibility Clause ''. University of Pennsylvania Law Review. 157 : 134 -- 137. SSRN 1294671. Prakash, Saikrishna Bangalore ( 2009 ). `` Why the Incompatibility Clause Applies to the Office of President ''. Duke Journal of Constitutional Law & Public Policy. 4 : 143 -- 151. Mount, Stephen J.J. ( 2003 ). `` Rewriting the Constitution ''. Jump up ^ Two, Section 1. Jump up ^ Campbell v. Clinton, 203 F. 3d 19 ( D.C. Cir. 2000 ) External links United States Constitution at Wikisource United States Constitution Articles Preamble II III IV V VI VII Amendments Ratified Bill of Rights 5 6 7 8 9 10 Others 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Pending Congressional Apportionment Titles of Nobility Corwin Amendment Child Labor Repealed Eighteenth Amendment Unsuccessful Equal Rights District of Columbia Voting Rights List of Amendments Bill of Rights ( Amendments 1 -- 10 ) Reconstruction Amendments ( Amendments 13 -- 15 ) Amendment proposals in Congress Convention to propose amendments State ratifying conventions Formation History Articles of Confederation Mount Vernon Conference Annapolis Convention Philadelphia Convention Virginia Plan New Jersey Plan Connecticut Compromise Three - Fifths Compromise Committee of Detail Signing Independence Hall Syng inkstand The Federalist Papers Anti-Federalist Papers Massachusetts Compromise Virginia Ratifying Convention Hillsborough Convention Rhode Island ratification Drafting and ratification timeline Clauses Appointments Appropriations Assistance of Counsel Bills of credit Case or Controversy Citizenship Commerce Compact Compulsory Process Confrontation Congressional enforcement Contract Copyright and Patent Double Jeopardy Due Process Equal Protection Establishment Exceptions Excessive Bail Ex post facto Extradition Free Exercise Free Speech Fugitive Slave Full Faith and Credit General Welfare Guarantee Impeachment Import - Export Ineligibility Militia Natural - born citizen Necessary and Proper New States No Religious Test Oath or Affirmation Origination Petition Postal Presentment Privileges and Immunities Privileges or Immunities Recess appointment Recommendation Self - Incrimination Speech or Debate Speedy Trial State of the Union Supremacy Suspension Take Care Takings Taxing and Spending Territorial Title of Nobility Treaty Trial by Jury Vesting Vicinage War Powers List of clauses Interpretation Concurrent powers Constitutional law Criminal procedure Criminal sentencing Dormant Commerce Clause Enumerated powers Equal footing Executive privilege Incorporation of the Bill of Rights Judicial review Nondelegation doctrine Preemption Saxbe fix Separation of church and state Separation of powers Taxation power Unitary executive theory Display and legacy National Archives Charters of Freedom Rotunda Independence Mall Constitution Day Constitution Gardens National Constitution Center Scene at the Signing of the Constitution ( painting ) A More Perfect Union ( film ) Worldwide influence US Government Portal Law Portal Wikipedia book United States articles History By event Timeline of U.S. history Pre-Columbian era Colonial era Thirteen Colonies military history Continental Congress American Revolution War American frontier Confederation Period Drafting and ratification of Constitution Federalist Era War of 1812 Territorial acquisitions Territorial evolution Mexican -- American War Civil War Reconstruction Era Indian Wars Gilded Age Progressive Era African - American civil rights movement 1865 -- 1896 / 1896 -- 1954 / 1954 -- 1968 Spanish -- American War Imperialism World War I Roaring Twenties Great Depression World War II home front Nazism in the United States American Century Cold War Korean War Space Race Feminist Movement Vietnam War Post-Cold War ( 1991 -- 2008 ) War on Terror War in Afghanistan Iraq War Recent events ( 2008 -- present ) By topic Outline of U.S. history Demographic Discoveries Economic debt ceiling Inventions before 1890 1890 -- 1945 1946 -- 91 after 1991 Military Postal Technological and industrial Geography Territory counties federal district federal enclaves Indian reservations insular zones minor outlying islands populated places states Earthquakes Extreme points Islands Mountains peaks ranges Appalachian Rocky National Park Service National Parks Regions East Coast West Coast Great Plains Gulf Mid-Atlantic Midwestern New England Pacific Central Eastern Northern Northeastern Northwestern Southern Southeastern Southwestern Western Rivers Colorado Columbia Mississippi Missouri Ohio Rio Grande Yukon Time Water supply and sanitation Politics Federal Executive Cabinet Civil service Executive departments Executive Office Independent agencies Law enforcement President of the United States Public policy Legislative House of Representatives current members Speaker Senate current members President pro tempore Vice President Judicial Courts of appeals District courts Supreme Court Law Bill of Rights civil liberties Code of Federal Regulations Constitution federalism preemption separation of powers Federal Reporter United States Code United States Reports Intelligence Central Intelligence Agency Defense Intelligence Agency Federal Bureau of Investigation National Geospatial - Intelligence Agency National Reconnaissance Office National Security Agency Office of the Director of National Intelligence Uniformed Armed Forces Army Marine Corps Navy Air Force Coast Guard National Guard NOAA Corps Public Health Service Corps 51st state political status of Puerto Rico District of Columbia statehood movement Elections Electoral College Foreign relations Foreign policy Hawaiian sovereignty movement Ideologies anti-Americanism exceptionalism nationalism Local government Parties Democratic Republican Third parties Red states and blue states Purple America Scandals State government governor state legislature state court Uncle Sam Economy By sector Agriculture Banking Communications Energy Insurance Manufacturing Mining Tourism Trade Transportation Companies by state Currency Exports Federal budget Federal Reserve System Financial position Labor unions Public debt Social welfare programs Taxation Unemployment Wall Street Society Culture Americana Architecture Cinema Cuisine Dance Demography Education Family structure Fashion Flag Folklore Languages American English Indigenous languages ASL Black American Sign Language HSL Plains Sign Talk Arabic Chinese French German Italian Russian Spanish Literature Media Journalism Internet Newspapers Radio Television Music Names People Philosophy Public holidays Religion Sexuality Sports Theater Visual art Social class Affluence American Dream Educational attainment Homelessness Home - ownership Household income Income inequality Middle class Personal income Poverty Professional and working class conflict Standard of living Wealth Issues Ages of consent Capital punishment Crime incarceration Criticism of government Discrimination affirmative action antisemitism intersex rights islamophobia LGBT rights racism same - sex marriage Drug policy Energy policy Environmental movement Gun politics Health care abortion health insurance hunger obesity smoking Human rights Immigration illegal International rankings National security Mass surveillance Terrorism Separation of church and state Outline Index Book Portal Separation of powers Typical branches Executive Legislature Judiciary Atypical branches Civil service commission Auditory Electoral Prosecutory By country Australia United Kingdom United States Singapore See also Fusion of powers Separation of duties Judicial independence Judicial review Dual mandate Retrieved from `` https://en.wikipedia.org/w/index.php?title=Separation_of_powers_under_the_United_States_Constitution&oldid=833490675 '' Categories : United States constitutional law Legal history of the United States Separation of powers Hidden categories : Articles needing additional references from February 2015 All articles needing additional references All articles with unsourced statements Articles with unsourced statements from September 2015 Articles that may contain original research from February 2015 All articles that may contain original research Articles with unsourced statements from February 2015 Talk Contents About Wikipedia Languages فارسی 中文 Edit links This page was last edited on 31 March 2018, at 21 : 54. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: where did the writers of the us constitution find out about separation of powers
Answer: Charles de Secondat, Baron de Montesquieu in The Spirit of the Laws