Politics of the United States
A federal republic with three branches and two dominant parties.
The politics of the United States operate within a framework of a constitutional federal republic with a presidential system. The federal government is divided into three distinct branches—legislative, executive, and judicial—that share powers, while state and local governments exercise authority over matters not reserved to the federal government. American politics has been dominated by two major parties, the Democratic Party and the Republican Party, since the American Civil War.
The federal government’s structure is defined by the U.S. Constitution. The legislative branch, Congress, is bicameral, consisting of the House of Representatives and the Senate. The executive branch is headed by the president, who serves as both head of state and head of government. The judicial branch, composed of the Supreme Court and lower federal courts, interprets the Constitution and federal laws, resolving disputes between the other branches. Unlike many developed countries, the U.S. Senate holds significantly more power than equivalent upper houses elsewhere, and the Supreme Court has an unusually broad scope of authority. The separation of powers between the legislature and executive is also a distinctive feature.
Each of the 50 states has its own constitution, modeled on the federal pattern but with differing details. State governments also have three branches: an executive led by a popularly elected governor, a bicameral legislature (except Nebraska, which has a unicameral body), and a judicial branch. State governments possess inherent powers to act on subjects like education, family law, contract law, and most crimes, unless limited by their own or the national constitution. Local governments exist at the county, municipal, township, school district, and special district levels.
Officials at all levels are popularly elected, except the president, who is chosen indirectly through the Electoral College. Almost all public officials are elected from single-member districts by a plurality of votes. Suffrage is nearly universal for citizens aged 18 and older, with some states restricting voting for registered felons. The dominance of only two major parties is largely due to the first-past-the-post voting system, which discourages vote splitting and encourages strategic voting. Both major parties lack formal central control over membership or policy, resulting in interna
- system
- Constitutional federal republic with a presidential system
- branches
- Legislative (bicameral Congress), executive (president), judicial (Supreme Court and lower federal courts)
- dominant_parties
- Democratic Party and Republican Party
- suffrage
- Nearly universal for citizens 18 and older, except registered felons in some states
- electoral_system
- Single-member districts with plurality voting; president elected indirectly via Electoral College
- state_governments
- 50 states, each with three branches headed by a governor
Lore & Background
The United States is a constitutional federal republic where the president serves as both head of state and head of government. The legislative branch, Congress, is bicameral, consisting of the House of Representatives and the Senate. The judicial branch, composed of the Supreme Court and lower federal courts, interprets the Constitution and federal laws. The federal government shares sovereignty with 50 state governments, each of which has its own constitution, three branches, and a popularly elected governor. Local governments include counties, municipalities, townships, school districts, and special districts, with officials popularly elected at all levels except the president, who is chosen through the Electoral College.
Reader's Guide
The political system of the United States is notable for its separation of powers, a powerful upper legislative house (the Senate), and a Supreme Court with broad authority. Since the American Civil War, the Democratic and Republican parties have dominated, with third parties having minimal influence due to the first-past-the-post voting system. This system encourages strategic voting and discourages vote splitting, leading to both major parties containing multiple internal factions. State governments possess inherent powers not granted to the federal government, allowing them to legislate on education, family law, contract law, and most crimes. The Progressive Era introduced initiatives, referendums, and recall elections at the state and local level, though these are absent at the federal level.
Did You Know?
- The United States is one of the world's only developed countries where all additional parties have minimal or nonexistent influence at the national and state level.
- Except for Nebraska, all states have a bicameral legislature, with the upper house usually called the Senate and the lower house called the House of Representatives or Assembly.
- Some cities, such as Philadelphia, Honolulu, San Francisco, Nashville, and Denver, are consolidated city-counties where the municipality and county have been merged.
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