Politics is the set of activities associated with the governance of a country, state or an area. It involves making decisions that apply to groups of members.
It refers to achieving and exercising positions of governance—organized control over a human community, particularly a state. The academic study focusing on just politics, which is therefore more targeted than general political science, is sometimes referred to as politology (not to be confused with politicology, a synonym for political science).
In modern nation-states, people often form political parties to represent their ideas. Members of a party often agree to take the same position on many issues and agree to support the same changes to law and the same leaders.
An election is usually a competition between different parties. Some examples of political parties worldwide are: the African National Congress (ANC) in South Africa, the Democratic Party (D) in the United States, the Conservative Party in the United Kingdom, the Christian Democratic Union (CDU) in Germany and the Indian National Congress in India which has the highest number of political parties in the world (2546 political parties).
Politics is a multifaceted word. It has a set of fairly specific meanings that are descriptive and nonjudgmental (such as “the art or science of government” and “political principles”), but does often colloquially carry a negative connotation. The word has been used negatively for many years: the British national anthem as published in 1745 calls on God to “Confound their politics”, and the phrase “play politics”, for example, has been in use since at least 1853, when abolitionist Wendell Phillips declared: “We do not play politics; anti-slavery is no half-jest with us.”
A political campaign is an organized effort which seeks to influence the decision making progress within a specific group. In democracies, political campaigns often refer to electoral campaigns, by which representatives are chosen or referendums are decided. In modern politics, the most high-profile political campaigns are focused on general elections and candidates for head of state or head of government, often a president or prime minister.
Source : Wiki