Here's what's at stake on the delegate front in the Iowa caucuses.
The Democrats have 44 delegates at stake and the Republicans have 30. That's just a small sliver of what it will take to win each party's nomination.
For Democrats, it will take 2,382 delegates to win the nomination. For Republicans, it will take 1,237.
Hillary Clinton starts off with a big lead because of endorsements by Democratic superdelegates. They're the party leaders who can support the candidate of their choice.
Clinton has 362 endorsements to just eight for Bernie Sanders. Martin O'Malley has two.
Republicans don't have nearly as many superdelegates.
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