What Are Political Parties?

More Than Just Labels

A political party is an organized group of people who share broadly similar political goals and seek to influence government policy by nominating candidates for office and winning elections. Parties are distinct from interest groups (which seek to influence policy without contesting elections) and social movements (which may lack formal organization). Every functioning democracy has political parties; they are considered necessary, even by those who dislike them.

Parties perform several essential functions. They aggregate interests, translating the diverse preferences of millions of citizens into coherent platforms. They recruit and socialize political leaders, identifying talent and teaching the norms of democratic competition. They simplify voter choice by providing party labels that signal broad policy orientations. And they organize government: in legislatures, parties form the blocs that pass legislation; in parliamentary systems, they form the coalitions that govern.

Why Parties Are Necessary

Political scientists from E.E. Schattschneider ('democracy is unthinkable save in terms of parties') to Giovanni Sartori have argued that parties are indispensable to democracy. Without parties, elections would be contests between individuals with no organizational infrastructure, no policy coherence, and no mechanism for accountability. Voters could not hold 'the government' responsible because there would be no organized entity to reward or punish.

Attempts to run democracies without parties have generally failed. George Washington warned against 'the baneful effects of the spirit of party,' but the United States developed parties within a decade of its founding because governing required organized legislative coalitions. Many countries have experimented with non-partisan elections (Uganda, Libya under Gaddafi), but these typically mask one-party dominance rather than eliminating partisanship.

Parties vs. Interest Groups vs. Movements

The defining line is electoral contestation: only parties nominate candidates and seek to hold office. The Sierra Club lobbies for environmental policy but does not run candidates; Germany's Greens (Bündnis 90/Die Grünen) grew out of the same movement milieu but crossed the line into party politics by contesting elections from the 1980s onward.

The Four Functions in Action

Consider India's 2024 general election, the largest democratic exercise in history, with more than 640 million votes cast. Parties made this manageable. The Bharatiya Janata Party (BJP) and the Indian National Congress each aggregated the preferences of hundreds of millions into rival manifestos. They recruited and screened tens of thousands of candidates. Party symbols, the BJP's lotus and Congress's hand, let voters of varied literacy levels identify their choice instantly. And after results were declared, parties organized government: the BJP-led National Democratic Alliance formed a coalition, while the Congress-led INDIA bloc organized the opposition. Strip out the parties and 640 million voters would face a chaos of unknown individuals with no way to assign credit or blame.