Modern liberalism in the United States in the context of "Berkeley, California"

Conservatism in the United States is one of two major political ideologies in the United States, with the other being liberalism (more specifically, modern social liberalism). Traditional American conservatism is characterized by a belief in individualism, traditionalism, capitalism, republicanism, and limited federal governmental power in relation to U.S. states, although 21st century developments have shifted it towards right-wing populist themes.

American conservatives maintain support from the Christian right and its interpretation of Christian values and moral absolutism, while generally opposing abortion, euthanasia, and some LGBT rights. They tend to favor economic liberalism, and are generally pro-business and pro-capitalism, while more strongly opposing communism and labor unions than liberals and social democrats. Recent shifts have moved it towards national conservatism, protectionism, cultural conservatism, and a more realist foreign policy.

The Rockefeller Republicans were members of the United States Republican Party (GOP) in the mid–20th century who held moderate to liberal views on domestic issues, similar to those of Nelson Rockefeller, the governor of New York from 1959 to 1973 and Vice President of the U.S. from 1974 to 1977. Rockefeller Republicans were most common in the Northeast and the industrial Midwestern states (with their larger moderate-to-liberal constituencies), while they were rare in the South and the West.

The term refers to "[a] member of the Republican Party holding views likened to those of Nelson Rockefeller; a moderate or liberal Republican". Geoffrey Kabaservice states that they were part of a separate political ideology, aligning on certain issues and policies with liberals, while on others with conservatives and on many with neither. Luke Phillips has also stated that the Rockefeller Republicans represent the continuation of the Whig tradition of American politics.

Libertarian conservatism, also referred to as conservative libertarianism and, more rarely, conservatarianism, is a libertarian political and social philosophy that combines conservatism and libertarianism, representing the libertarian wing of conservatism and vice versa.

Libertarian conservatism advocates the greatest possible economic liberty and the least possible government regulation of social life (described as "small government"), mirroring laissez-faire classical liberalism, but harnesses this to a belief in a more socially conservative philosophy emphasizing authority, morality, and duty. Primarily an American ideology, libertarian conservatism prioritizes liberty, promoting free expression, freedom of choice and free-market capitalism to achieve conservative ends while rejecting liberal social engineering.

John Bordley Rawls (/rɔːlz/; February 21, 1921 – November 24, 2002) was an American moral, legal and political philosopher in the modern liberal tradition. Rawls has been described as one of the most influential political philosophers of the 20th century.

In 1990, Will Kymlicka wrote in his introduction to the field that "it is generally accepted that the recent rebirth of normative political philosophy began with the publication of John Rawls's A Theory of Justice in 1971". Rawls's theory of "justice as fairness" recommends equal basic liberties, equality of opportunity, and facilitating the maximum benefit to the least advantaged members of society in any case where inequalities may occur. Rawls's argument for these principles of social justice uses a thought experiment called the "original position", in which people deliberately select what kind of society they would choose to live in if they did not know which social position they would personally occupy. In his later work Political Liberalism (1993), John Rawls addressed the question of how political power can be exercised legitimately in a society where citizens hold diverse and often conflicting moral, religious, and philosophical points of view.

San Francisco, officially the City and County of San Francisco, is a commercial, financial, and cultural center of Northern California. With an estimated population of 827,526 residents as of 2024, San Francisco proper is the fourth-most populous city in the U.S. state of California and the 17th-most populous in the United States. Among U.S. cities proper with over 300,000 residents, San Francisco is ranked second by population density, first by per capita income, and sixth by aggregate income as of 2023. Depending on how its borders are defined, the broader San Francisco metropolitan area or San Francisco Bay Area is home to 4.6–9.2 million residents. In 2024, the U.S. Census Bureau reported an estimated population of 4,648,486 for the city's metropolitan statistical area (13th-largest in the U.S.) and 9,164,058 residents for the larger combined statistical area (5th-largest).

Prior to European settlement, the modern city proper was inhabited by the Yelamu Ohlone. On June 29, 1776, settlers from New Spain established the Presidio of San Francisco at the Golden Gate, and the Mission San Francisco de Asís a few miles away, both named for Francis of Assisi. The California gold rush of 1849 brought rapid growth, making it the largest city on the West Coast at the time. In 1856, San Francisco became a consolidated city-county. After three-quarters of the city was destroyed by the 1906 earthquake and fire, it was quickly rebuilt, hosting the Panama–Pacific International Exposition nine years later. In World War II, it was a major port of embarkation for naval service members shipping out to the Pacific Theater. After the war, the confluence of returning servicemen, significant immigration, liberalizing attitudes, the rise of the beatnik and hippie countercultures, the sexual revolution, opposition to U.S. involvement in the Vietnam War, and other factors led to the Summer of Love and the gay rights movement, cementing San Francisco as a center of liberal activism.

American political ideologies conventionally align with the left–right political spectrum, with most Americans identifying as conservative, liberal, or moderate. Contemporary American conservatism includes social conservatism and fiscal conservatism. The former ideology developed as a response to communism and then the civil rights movement, while the latter developed as a response to the New Deal. Modern American liberalism includes cultural liberalism, social liberalism and progressivism, developing during the Progressive Era and the Great Depression. Besides conservatism and liberalism, the United States has a notable libertarian movement, developing during the mid-20th century as a revival of classical liberalism. Historical political movements in the United States have been shaped by ideologies as varied as republicanism, populism, separatism, fascism, socialism, monarchism, and nationalism.

Political ideology in the United States began with the country's formation during the American Revolution, when republicanism challenged the preexisting monarchism that had defined the colonial governments. After the formation of an independent federal government, republicanism split into new ideologies, including classical republicanism, Jeffersonian democracy, and Jacksonian democracy. In the years preceding the American Civil War, abolitionism and secessionism became prominent. Progressivism developed at the beginning of the 20th century, evolving into modern liberalism over the following decades, while modern conservatism developed in response. The Cold War popularized anti-communism and neoconservatism among conservatives, while the civil rights movement popularized support for racial justice among liberals. Populist movements grew in the early-21st century, including progressivism and Trumpism.

Liberalism in the United States is based on concepts of unalienable rights of the individual. The fundamental liberal ideals of consent of the governed, freedom of speech, freedom of the press, freedom of religion, the separation of church and state, the right to bear arms, the right to due process, and equality before the law are widely accepted as a common foundation of liberalism. It differs from liberalism worldwide because the United States never had a resident hereditary aristocracy, and avoided much of the class warfare that characterized Europe. According to American philosopher Ian Adams, "all US parties are liberal and always have been", they generally promote classical liberalism, which is "a form of democratized Whig constitutionalism plus the free market", and the "point of difference comes with the influence of social liberalism" and principled disagreements about the proper role of government.

Since the 1930s, liberalism is usually used without a qualifier in the United States to refer to modern liberalism, a variety of liberalism that accepts a government role to prevent market failures and promotes expansion of civil and political rights, with the common good considered as compatible with or superior to the absolute freedom of the individual. This political philosophy was exemplified by Franklin D. Roosevelt's New Deal policies and later Lyndon B. Johnson's Great Society. Other accomplishments include the Works Progress Administration and the Social Security Act in 1935, as well as the Civil Rights Act of 1964 and the Voting Rights Act of 1965. This variety of liberalism is also known as modern liberalism to distinguish it from classical liberalism, from which it sprang out along with modern American conservatism.

In American political theory, fiscal conservatism or economic conservatism is a political and economic philosophy regarding fiscal policy and fiscal responsibility with an ideological basis in capitalism, individualism, limited government, and laissez-faire economics. Fiscal conservatives advocate tax cuts, reduced government spending, free markets, deregulation, privatization, free trade, and minimal government debt. Fiscal conservatism follows the same philosophical outlook as classical liberalism. This concept is derived from economic liberalism and later neoliberalism.

The term has its origins in the era of the American New Deal during the 1930s as a result of the policies initiated by modern liberals, when many classical liberals started calling themselves conservatives as they did not wish to be identified with what was being called liberalism in the United States. In the United States, the term liberalism has become associated with the welfare state and expanded regulatory policies created as a result of the New Deal and its offshoots from the 1930s onwards.