The United States is a federal constitutional republic, in which the President of the United States (the head of state and head of government), Congress, and judiciary share powers reserved to the national government, and the federal government shares sovereignty with the state governments.
This article presents the historical development and role of political parties in United States politics, and outlines more extensively the significant modern political parties. Throughout most of its history, American politics have been dominated by a two-party system. However, the United States Constitution has always been silent on the issue of political parties; at the time it was signed in 1787, there were no parties in the nation. Indeed, no nation in the world had voter-based political parties. The need to win popular support in a republic led to the American invention of political parties in the 1790s. Americans were especially innovative in devising new campaign techniques that linked public opinion with public policy through the party.
Southern Democrats are members of the U.S. Democratic Party who reside in the American South.
In the 19th century, Southern Democrats comprised whites in the South who believed in Jacksonian democracy. In the 1850s they held that slavery was a good thing and promoted its expansion into the West. After Reconstruction ended in the late 1870s they controlled all the Southern states and disenfranchised the blacks (who were Republicans). The "Solid South" gave nearly all its electoral votes to Democrats in presidential elections. Republicans seldom were elected to office outside some mountain districts.
The United States is a federation, with elected officials at the federal (national), state and local levels. On a national level, the head of state, the President, is elected indirectly by the people, through an Electoral College. Today, the electors virtually always vote with the popular vote of their state. All members of the federal legislature, the Congress, are directly elected. There are many elected offices at state level, each state having at least an elective governor and legislature. There are also elected offices at the local level, in counties and cities. It is estimated that across the whole country, over one million offices are filled in every electoral cycle.
State law regulates most aspects of the election, including primaries, the eligibility of voters (beyond the basic constitutional definition), the running of each state's electoral college, and the running of state and local elections. The United States Constitution defines (to a basic extent) how federal elections are held, in Article One and Article Two and various amendments. The federal government has also been involved in attempts to increase voter turnout, by measures such as the National Voter Registration Act of 1993.
House of Representatives is the name of legislative bodies in many countries and sub-national states. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often called a "Senate". In some countries, the House of Representatives is the sole chamber of a unicameral legislature.
The functioning of a house of representatives can vary greatly from country to country, and depends on whether a country has a parliamentary or a presidential system. Members of a House of Representatives are typically apportioned according to population rather than geography.