The election system is a set of rules that decide how to implement and decide the elections and referendums. The political election system is organized by the government, non-political elections can be carried out in commercial, non-profit, and informal organizations. The election system consists of a set of rules that govern all aspects of the voting process. People who can vote when the election occurs, candidates, methods of scoring and voting, how to count votes (election method), other factors that may affect the campaign spending limitation results. The political election system is defined by the Constitution and Election Law, usually by the Election Commission, and you can do multiple types of elections for various positions.
Primary elections are a feature of several electoral systems as an official part of the election system or as an informal election by selecting individual parties as candidates for elections. This is the case of Italy. In the primary election, we limit the risk of voting split by securing one candidate. In Argentina, these are part of the official election system, political parties that are held two months before the main election and receive less than 1.5% of voting rights can not participate in the main election. In America, there are parties and nonpartisan primary elections.