This document provides an overview of political parties in the United States. It defines key terms like political party, faction, and independent. It describes the main activities of political parties like recruiting candidates, organizing elections, and presenting policy platforms. It then discusses the history of parties in the US starting from the Federalists and Anti-Federalists to the modern Democratic and Republican parties. It also examines the roles and faces of political parties at different levels and how the winner-take-all electoral system influences the party system.