A green party is a formally organized political party based on the principles of green politics, such as environmentalism and social justice.
In 1979, Daniel Brélaz became the world's first green member of a national parliament (in Switzerland).
Indulis Emsis of the Latvian Green Party became Prime Minister of Latvia in 2004, and the world's first green head of government.
Raimonds Vējonis, President of Latvia
Alexander Van der Bellen, President of Austria
A political party is an organization that coordinates candidates to compete in a particular country's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific ideological or policy goals.
The members of political parties, such as those of the Indian National Congress (pictured), coordinate to collectively achieve and use political power.
In A Block for the Wigs (1783), James Gillray caricatured Fox's return to power in a coalition with North. George III is the blockhead in the centre.
Political parties like the Romanian Communist Party can arise out of, or be closely connected to, existing segments of society, such as organizations of workers.
It is easier for voters to evaluate one simple list of policies for each party, like this platform for the United Australia Party, than to individually judge every single candidate.