Examples of political parties include the Democratic Party (U.S.), the Conservative Party (U.K.), the Christian Democratic Union (Germany) and the Movement for Democratic Change – Tsvangirai (Zimbabwe). According to Merriam-Webster, a political party is a group of people organized to gain and use political power.
Political parties are sometimes informal groupings around a charismatic leader, but most modern parties adhere to consolidated structures with explicit ideologies expressed through a political platform, governance rules and other institutional characteristics. In some countries, such as Italy, many parties contend for power. In others, such as the United States, two main parties usually win elections. Moreover, in countries such as North Korea and China, only one party, the Communist Party, has access to the reins of power.