Political Parties in the US: Beliefs of Every Major and Minor Party

Political parties in the US are coalitions, not clubs with a single creed. Each one bundles together people who agree on enough to win elections, and the bundle shifts over time. This guide covers what each party says it stands for, who tends to support it, and why the American system so rarely lets a third party break through.

The two-party system

America's founders were wary of parties. They formed them anyway, within a few years of the Constitution.

Federalists vs Democratic-Republicans

The first divide opened in George Washington's first term. Alexander Hamilton and his allies, the Federalists, wanted a strong national government, a national bank and federal management of the war debt. Their opponents rallied around Thomas Jefferson and James Madison, favoring states' rights, farmers and a narrower reading of federal power. Britannica dates this Jeffersonian party to 1792.

By about 1820 the Federalists had faded from national politics. The Jeffersonian coalition later split, and the faction around Andrew Jackson became the Democratic Party. Its rivals, eventually the Whigs and then the Republicans, filled the other side. The details changed, but the pattern of two big parties stuck.

Why two parties keep winning

Most American elections use plurality voting in single-member districts. One seat, one winner, whoever gets the most votes. Political scientists call the result Duverger's law, after the French scholar Maurice Duverger: winner-take-all rules push a country toward two large parties.

The logic is simple. A party that wins 15 percent of the vote in every district can still win zero seats. Voters who like that party often switch to the major party closest to them, so their vote "counts."

Other hurdles stack on top:

• Ballot access. Democratic and Republican nominees usually appear on the ballot automatically. Minor parties often have to collect large numbers of signatures, state by state.
• The Electoral College. Broad but thin national support earns no electoral votes. A candidate can win millions of votes spread across the country and still carry no states.
• Money. National campaigns are expensive, and donors tend to back likely winners.

Countries with proportional representation, common in Europe, award seats by vote share. That is a big reason why many European democracies have five or more parties in parliament.

The Democratic Party

Britannica calls the Democratic Party the oldest political party in the US and among the oldest in the world. Its symbol is the donkey.

The party's outlook today is broadly liberal in the American sense, with a growing progressive wing. Note that "liberal" means something different in Europe, where it often describes free-market parties. For a closer look, see our guide to liberal vs conservative.

The party's 2024 national platform is organized around themes like these:

• Economy: growing the economy "from the bottom up and middle out," support for unions, higher taxes on top earners and corporations.
• Health and costs: expanding access to health care, lowering prescription drug and housing costs.
• Climate: investment in clean energy and climate resilience.
• Rights: voting rights, abortion access (which the platform calls reproductive freedom), and racial equity.
• Guns: expanded background checks and other gun safety laws.

Supporters argue that government has a duty to reduce inequality and protect individual rights. Critics on the right argue that the party's spending and regulation slow growth, and critics on the left argue it moves too cautiously.

Coalition: According to Pew Research Center data on registered voters in 2023, 38 percent of Democratic voters are religiously unaffiliated and 45 percent hold a bachelor's degree. Democratic voters are also more racially diverse: 56 percent are White, compared with 79 percent of Republican voters.

The Republican Party

The Republican Party formed in 1854, built from former Whigs, Free Soilers and antislavery Democrats. Its founding cause, per Britannica, was opposing the extension of slavery into the territories under the Kansas-Nebraska Act. Six years later, Abraham Lincoln became its first president. Its nickname is the GOP, for Grand Old Party, and its symbol is the elephant.

Today the party is broadly conservative, combining fiscal conservatism, social conservatism and, in recent years, a strong right-populist current. Its 2024 platform emphasizes:

• Economy: lower taxes, fewer regulations, and tariffs aimed at bringing manufacturing home.
• Immigration: border security and stricter enforcement.
• Energy: expanding domestic oil, gas and coal production.
• Social issues: protecting gun rights and religious liberty, and opposing what it calls gender ideology in schools.
• Defense: "peace through strength" and a stronger military.

Supporters argue that limited government, strong borders and traditional values protect freedom and prosperity. Critics on the left argue its policies favor the wealthy and restrict personal choices, while some libertarian and free-market critics object to its recent turn toward tariffs.

Coalition: In the same Pew data, White evangelical Protestants make up 30 percent of Republican voters, and 81 percent of Republican voters identify as Christian. About two-thirds of Republican voters are 50 or older.

Minor parties today

Minor parties rarely win federal office, but they give voters a way to register views that the big two leave out.

Libertarian Party

Founded in 1971, the Libertarian Party describes itself as the third-largest party in the US. Its core idea is that government should be limited to protecting people from force and fraud. On its official site it calls for free markets without bailouts or subsidies, an end to deficit spending, opposition to the Federal Reserve, and a foreign policy that avoids wars while defending the right to self-defense. On social issues it generally favors personal freedom over government rules.

Libertarianism mixes positions Americans usually split between the parties: right on economics, left on many social questions. Our libertarian vs liberal guide explains the difference.

Green Party

The Green Party of the United States was formed in 2001, when delegates from 35 state Green Parties voted to create a national party. It grew out of the Association of State Green Parties, formed in 1996. The party organizes around ten key values, including ecological wisdom, grassroots democracy, social justice, nonviolence and decentralization. In practice it sits to the left of the Democrats, pairing green politics with strong support for public programs and campaign finance reform.

Constitution Party

The Constitution Party, established in 1992, is a socially conservative party that wants to restore the federal government to the powers listed in the Constitution. Its 2024 to 2028 platform calls for protecting life from conception, abolishing the federal income tax and the IRS in favor of tariffs and excise taxes, stricter immigration limits, and a non-interventionist foreign policy. It describes its goal as restoring American law to its Biblical foundations.

Other notable parties

Several smaller parties matter in particular states. The Working Families Party, rooted in New York, is a progressive party that often endorses Democratic candidates on its own ballot line, a practice called fusion voting that some states allow. Many states also have local independence or reform parties.

Historic third parties

Third parties have shaped American politics far more than their win totals suggest.

• The Populists (People's Party). A farmer-based movement of the late 1800s that pushed ideas like a graduated income tax and the direct election of senators. Both later became law.
• The Progressive "Bull Moose" Party. After losing the Republican nomination in 1912, Theodore Roosevelt ran on a platform of social welfare and economic regulation. He won 88 electoral votes and 27.4 percent of the popular vote, which Britannica calls the largest share ever for a third-party candidate. The split helped Woodrow Wilson win.
• The Socialist Party. In the same 1912 race, Eugene V. Debs drew about 900,000 votes.
• The Reform Party. It grew out of a popular independent presidential campaign in the early 1990s and focused on balanced budgets, term limits and campaign finance reform.

Britannica observes that no third party has won the presidency or control of Congress, but the positions they advocate are often later adopted by the major parties.

Parties compared

These are rough summaries. Every party contains internal factions, and individual candidates often break from their party's platform.

Find where you fit

Most people do not line up perfectly with one party. You might lean one way on taxes and another on immigration or civil liberties. That is normal, and it is exactly why a single "left or right" label often feels wrong.

A better approach is to measure your views issue by issue, then see which party sits closest:

• The 12 Axes Political Test scores you on 12 dimensions and matches you with ideologies and historical figures. Compare your closest matches with the party summaries above.
• The Political Compass Test places you on an economic axis and a liberty vs authority axis in about 6 minutes.
• Short on time? Try the Am I Liberal or Conservative? quiz or How Libertarian Are You?, both under 2 minutes.

For background on the ideas behind these labels, see left vs right politics or browse our full list of ideologies.