Politics is the system by which a governmental being or body is governed. Those involved in governing and formulating public policy are known as politicians. Most planets has their own political system. Most political systems had their own constitution and law system, however it has to comply with the Galactic Constitution if it is part of the Republic. Most planets has a head of state. It was usually in the form of a king, a queen, a president, a prime minister, or a chancellor. The head of state could either be chosen by election, or by way of inheritance. Within many inter-galactic governments, politics has become very corrupted by politicians who focussed on their own self-advancement and greed.