Who are delegates,super delegates who appoint them what are their duties?
Here's how the delegate system really works, with breakdowns of how many delegates the candidates will need to win their parties' nominations.
What are delegates?
Delegates attend the Republican and Democratic national conventions on behalf of the candidates they're pledged to, based on the results of the caucuses and primaries that have taken place so far. For the 2016 presidential election, there are 2,472 Republican delegates at stake and 4,763 for the Democrats.
The way the two parties award their delegates is different: All of the Democratic delegates are awarded proportionally, rather than in a winner-take-all situation. But among Republicans, the process varies from state to state.
How many delegates does a candidate need to win?
To capture the Republican primary nomination, a candidate will need 1,237 delegates; on the Democratic side, the magic number is 2,382. Those figures represent the point at which a candidate has earned the votes of 50% of her or his party's delegates.
Donald Trump currently has 743 delegates, while Ted Cruz has 545, according to The Wall Street Journal. On the Democratic side, Hillary Clinton has 1,289 pledged delegates, while Bernie Sanders has 1,038.
What's a superdelegate?
The Democratic race differs from the Republican process in one major way: superdelegates. Of the 4,763 Democratic delegates, 712 — about 15% — are superdelegates. These are delegates who go into the Democratic convention unfettered to any specific candidate, unlike so-called pledged delegates. In other words, they're free agents — and they hold lots of power.
Superdelegates include elected officials, i.e., senators and members of the House of Representatives; certain members of the Democratic National Committee; and notable Democrats, such as current and former presidents and vice presidents, CBS News explains. They are, in many cases, literally elder statesmen and women who can be expected to represent their party's core values when pledging their votes. As of April 9, 469 of the Democratic superdelegates had expressed support for Hillary Clinton.
As the AP notes, Republicans do have superdelegates, but the process is less of a "wild card" situation. At the 2012 Republican National Convention, the party implemented a rule that delegates must be awarded to candidates based on caucus and primary results. The rule affects most of the 168 RNC members who would previously have been free agents at the convention. But superdelegates from Colorado and North Dakota aren't pledged to any candidate, since those states don't actually hold votes in their Republican caucuses.
(thanks to: http://www.refinery29.com/2016/03/104996/what-are-delegates-superdelegates