Social conservatism in the United States in the context of School prayer in the United States

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.

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.

Presidential elections were held in the United States on November 5, 1968. The Republican ticket of former Vice President Richard Nixon and Maryland governor Spiro Agnew defeated the Democratic ticket of incumbent Vice President Hubert Humphrey and Senator Edmund Muskie and the American Independent Party ticket of former Alabama governor George Wallace and general Curtis LeMay. The election cycle was tumultuous and chaotic, and is often characterized as one of the most violent in American history. It was marked by the assassination of Martin Luther King Jr. in early April and the subsequent 54 days of riots across the US; the assassination of Robert F. Kennedy in early June; and widespread opposition to the Vietnam War across university campuses as well as at the Democratic National Convention, which saw police crackdowns on protesters, reporters, and bystanders.

Incumbent president Lyndon B. Johnson was the early frontrunner for the Democratic nomination, but withdrew from the race after only narrowly winning the New Hampshire primary. Humphrey, Eugene McCarthy, and Robert F. Kennedy emerged as the three major candidates in the Democratic primaries until Kennedy was assassinated. Humphrey, who supported the Vietnam War, defeated the anti-war McCarthy to win the Democratic nomination, sparking protests. Humphrey's promise to continue the Johnson administration's war on poverty and support for the civil rights movement eroded his support in the South, prompting a third-party run by Wallace that campaigned for racial segregation on the basis of "states' rights." Wallace attracted socially conservative voters throughout the South (including Southern Democrats and former Barry Goldwater supporters), as well as white working-class voters in the North and Midwest through his economic populism and anti-establishment rhetoric.

Cultural liberalism is a social philosophy which expresses the social dimension of liberalism and advocates the freedom of individuals to choose whether to conform to cultural norms. In the words of Henry David Thoreau, it is often expressed as the right to "march to the beat of a different drummer". Also known as social liberalism in the United States and Canada, while cultural progressivism does overlap with cultural liberalism, it does not mean exactly the same thing as cultural liberalism. Cultural liberalism can be thought of as emphasizing a balance between positive liberty and negative liberty, whereas cultural progressivism can instead be seeing as prioritizing social justice and social equality over individual freedom.

The United States refers to cultural liberalism as social liberalism; however, it is not the same as the broader political ideology known as social liberalism. In the United States, social liberalism describes progressive moral and social values or stances on socio-cultural issues such as abortion and same-sex marriage as opposed to social conservatism. A social conservative or a social liberal in this sense may hold either more conservative or progressive views on fiscal policy.

The American Solidarity Party (ASP), formerly the Christian Democratic Party USA (CDPUSA), is an American syncretic political party founded in 2011 by David "Frost" Harris, Kirk Morrison, and Jack Quirk. It is a Christian democratic political party with center-left economic values and center-right social values. The party has a Solidarity National Committee (SNC) and has numerous active state and local chapters. The party adheres to a consistent life ethic, opposing reproductive rights such as abortion, surrogacy, and IVF, as well as euthanasia, assisted suicide, capital punishment, and unjust war. They support universal healthcare, immigration, and welfare.

The American Solidarity Party has been characterized as socially conservative while supporting government intervention in economic matters. The ASP encourages social development along the lines of subsidiarity and sphere sovereignty, with a stated emphasis on "the importance of strong families, local communities, and voluntary associations". It favors fiscally progressive policies, as well as a social market economy with a distributist character, which seeks "widespread economic participation and ownership", and providing a social safety net program.