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Here's your handy election glossary

So you're saying there's a difference between a primary and an open primary...
The Democratic caucuses are held in Nevada, Feb. 20, 2016.
The Democratic caucuses are held in Nevada, Feb. 20, 2016.

Understanding the presidential election process can be confusing -- like why are the rules for a Democratic and Republican caucus so different? What's the difference between a primary and an open primary? 

For when you need a quick explainer, refer to our official Decision 2016 Election Glossary.