In states holding them, presidential primary elections are open to all registered voters 😊 Just like in general elections, voting is done through a secret ballot 🤓 The voters can choose among any registered candidate and all write-ins count 🤓 There are two kinds of primaries: open and closed. Closed primaries allow voters to vote in only the primary election of the party they have registered for. Voters who are registered as Republicans can vote only in Republican primaries. In an open primaries, voters registered can vote in either primary or the other party’s primary. However, they are limited to one primary. Many states have closed primaries. 
From July 13-16, 2020 the Democratic National Convention in Milwaukee will take place. There will be 4,750 attendees who vote in the election for Democratic president candidate at the convention. There are 3979 pledged delegate delegates who are elected at state or local levels. Pledged delegate are chosen with the expectation they will vote for a particular candidate at the convention. The state’s number of delegate depends on many factors, including how large the state, its Democratic lean, the date and the electoral vote. To receive any delegate, the candidate must have at least 15% of votes in either the primaries or caucuses. Superdelegates, a group consisting of 771 delegate members who aren’t required to support a particular presidential candidate in 2020, are called superdelegates. The DNC, Democratic members in Congress or prominent party leaders are the superdelegates. This page was last modified on 7/07/2018 by Shenise light from Chaoyang (China). 
Delegate Selection rules did not address directly how withdrawal of a candidate affected pledged delegate support. Twelve states have statutes that allow for release of delegate after the withdrawal of any candidate or after the completion of a specified number of national convention ballots. Below is a table listing these states. The column entitled “Candidate withdrawal/release provision” shows that the statute allows for pledged delegate release upon withdrawal of a candidate or on the express direction of the candidate. The column entitled “Multiple ballot provision” shows that the statute allows for delegate pledged to be released after certain number of votes have been cast at convention. (The number in parentheses is the number on which they would be released). You can also find the full text and citations of pertinent statutes. This was last updated by Long Presley, Dar Es Salaam (Tanzania) 4 weeks ago.