Title: Federal government of the United States
Content:  The federal government of the United States (U.S. federal government or U.S. government) is the national government of the United States, a federal republic in North America, composed of 50 states, a federal district (District of Columbia, where the government is based), five major self-governing territories and several island possessions. The federal government is composed of three distinct branches: legislative, executive, and judicial, whose powers are vested by the U.S. Constitution in the Congress, the president and the federal courts, respectively. The powers and duties of these branches are further defined by acts of Congress, including the creation of executive departments and courts inferior to the Supreme Court.
Title: Comparison of U.S. state and territory governments
Content:  In the United States, the government of each of the 50 states is structured in accordance with its individual constitution. In turn, each state constitution must be grounded in republican principles. Article IV, Section 4, Clause 1 of the United States Constitution tasks the federal government with assuring that each state's government is so organized. All state governments are modeled after the federal government and consist of three branches (although the three-branch structure is not Constitutionally required): executive, legislative, and judicial. All state governments are also organized as presidential systems where the governor is both head of government and head 
Title: Politics of the United States
Content:  The United States is a constitutional federal republic, in which the president (the head of state and head of government), Congress, and judiciary share powers reserved to the national government, and the federal government shares sovereignty with the state governments. The executive branch is headed by the president and is independent of the legislature. Legislative power is vested in the two chambers of Congress: the Senate and the House of Representatives. The judicial branch (or judiciary), composed of the Supreme Court and lower federal courts, exercises judicial power. The judiciary's function is to interpret the United States Constitution and federal laws and regulations. This includes resolving disputes between the executive and legislative branches. The federal government's layout is explained in the Constitution. Two political parties, the Democratic Party and the Republican Party, have dominated American 
Title: United States
Content:  unconstitutional. The United States is a federal republic of 50 states, a federal district, five territories and several uninhabited island possessions. It is the world's oldest surviving federation. It is a federal republic and a representative democracy "in which majority rule is tempered by minority rights protected by law." Since 2015, the U.S. has ranked 25th on the Democracy Index, and is described as a "flawed democracy". On Transparency International's 2019 Corruption Perceptions Index, its public sector position deteriorated from a score of 76 in 2015 to 69 in 2019. In the American federalist system, citizens are usually subject to three levels of government: federal, state, and local. The local government's duties 
Title: United States
Content:  commonly split between county and municipal governments. In almost all cases, executive and legislative officials are elected by a plurality vote of citizens by district. The government is regulated by a system of checks and balances defined by the U.S. Constitution, which serves as the country's supreme legal document. The Constitution establishes the structure and responsibilities of the federal government and its relationship with the individual states. Article One protects the right to the writ of habeas corpus. The Constitution has been amended 27 times; the first ten amendments, which make up the Bill of Rights, and the Fourteenth Amendment form the central basis of Americans' individual rights. All laws and governmental 
Title: Politics of the United States
Content:  since the American Civil War, although other parties have existed. There are major differences between the political system of the United States and that of many other developed countries. These include the increased power of the upper house of the legislature, a wider scope of power held by the Supreme Court, the separation of powers between the legislature and the executive, and the dominance of only two main parties. The United States is one of the world's developed countries where third parties have minimal influence and almost no representation at the national and state level. The federal entity created by the U.S. Constitution is the dominant feature of the American governmental system, as citizens are also subject to a state government and various units of local government (such as counties, municipalities, and special districts).
Title: Mixed government
Content:  One school of scholarship based mainly in the United States considers mixed government to be the central characteristic of a republic and holds that the United States has rule by the one (the President; monarchy), the few (the Senate; aristocracy) and the many (House of Representatives; democracy). Another school of thought in the United States says the Supreme Court has taken on the role of "The Best" in recent decades, ensuring a continuing separation of authority by offsetting the direct election of senators and preserving the mixing of democracy, aristocracy and monarchy.
Title: Federal government of the United States
Content:  The United States government is based on the principles of federalism and republicanism, in which power is shared between the federal government and state governments. The interpretation and execution of these principles, including what powers the federal government should have and how those powers can be exercised, have been debated ever since the adoption of the Constitution. Some make a case for expansive federal powers while others argue for a more limited role for the central government in relation to individuals, the states, or other recognized entities. Since the American Civil War, the powers of the federal government have generally expanded greatly, although there have been periods since that time of legislative branch dominance (e.g., the decades immediately following the Civil War) or when states' rights proponents have succeeded in 
Title: Divided government in the United States
Content:  In the United States, divided government describes a situation in which one party controls the executive branch while another party controls one or both houses of the legislative branch. Divided government is seen by different groups as a benefit or as an undesirable product of the model of governance used in the U.S. political system. Under said model, known as the separation of powers, the state is divided into different branches. Each branch has separate and independent powers and areas of responsibility so that the powers of one branch are not in conflict with the powers associated with the others. However, the degree to which the president of the United States has control of Congress often determines their political strength - such as the ability to pass sponsored legislation, ratify treaties, and have Cabinet members and judges approved. The model can be contrasted with the fusion of powers 
Title: Federal government of the United States
Content:   The United States Congress, under Article I of the Constitution, is the legislative branch of the federal government. It is bicameral, comprising the House of Representatives and the Senate.

Question: what form of government does the united states use?
Answer: Presidential system.