American politics

Officials are popularly elected at the federal, state and local levels, with the major exception being the president, who is instead elected indirectly by the people through the Electoral College. American politics is dominated by two parties which since the American Civil War have been the Democratic Party and the Republican Party, although other parties have run candidates. Since the mid-20th century, the Democratic Party has generally supported left-leaning policies, while the Republican Party has generally supported right-leaning ones. Both parties have no formal central organization at the national level that controls membership, elected officials or political policies; thus, each party has traditionally had factions and individuals that deviated from party positions. Almost all public officials in America are elected from single-member districts and win office by winning a plurality of votes cast (i.e. more than any other candidate, but not necessarily a majority). Suffrage is nearly universal for citizens 18 years of age and older, with the notable exception of registered felons in some states.