The series of presidential primary

The series of presidential primary elections and caucuses held in each U.S. state and territory is part of the nominating process of United States presidential elections. This process was never included in the United States Constitution, and thus was created over time by the political parties. Some states only hold primary elections, some only hold caucuses, and others use a combination of both. These primaries and caucuses are staggered between January and June before the general election in November. The primary elections are run by state and local governments, while caucuses are private events that are directly run by the political parties themselves. A state's primary election or caucus usually is an indirect election: instead of voters directly selecting a particular person running for President, it determines how many delegates each party's national convention will receive from their respective state. These delegates then in turn select their party's presidential nominee.

Each party determines how many delegates are allocated to each state. Along with those delegates chosen during the primaries and caucuses, state delegations to both the Democratic and Republican conventions also include "unpledged" delegates, usually current and former elected officeholders and party leaders, who can vote for whomever they want.

This system of presidential primaries and caucuses is somewhat controversial because of its staggered nature. The major advantage is that candidates can concentrate their resources in each area of the country one at a time instead of campaigning in every state simultaneously. However, those states which traditionally hold their primaries and caucuses in the latter half of the primary season are normally at a tremendous disadvantage because the races are usually over by then. As a result, more states vie for earlier primaries to claim a greater influence in the process.

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一系列的总统初选和党团会议在美国各个州和领土的一部分的美国总统选举的提名过程。这个过程从来没有列入美国宪法，从而创造了一段时间的政党。有些国家只举行初选，有的只举行会议，和其他人使用两者的结合。这些初选及党内交错之间的一月和六月在十一月大选之前。主要的选举是由国家和地方政府，而将是私人事件，是直接由政党自身。一个国家的初选或党团通常是间接选举：而选民直接选择一个特定的人竞选总统，它决定如何许多代表各政党的全国代表大会将收到从他们各自的国家。这些代表依次选择党的总统候选人。

每一方决定如何许多代表分配给每个状态。随着这些代表选择在初选和选举，国家代表民主党与共和党的公约也包括“未出质”的代表，通常现任和前任民选官员和党的领导人，谁可以投票给谁，他们想要的。

这个系统的总统竞选是有些争议，因为其交错性。主要的优点是，考生可以集中资源在各地区的国家之一的时间而不是竞选活动在每一个国家同时。然而，这些国家传统上举行初选和党团在下半年的主要季节通常是在一个巨大的劣势，因为比赛通常是结束了。作为一个结果，越来越多的国家争夺早先初选要求一个更大的影响的过程中，

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