Plug in your own predictions

and find out whether it's possible for Clinton to catch Obama.

By Chadwick Matlin and Chris Wilson on Slate

For all the emphasis on words in this Democratic primary, it still comes down to a number: 2,025—the number of pledged delegates and superdelegates needed to command a convention majority and secure the nomination.

And with less than a week to go before Hillary Clinton's do-or-die day in Ohio and Texas, questions abound about how—or if—she can take the lead in pledged delegates. To help you explore all possible scenarios, Slate has created a pledged delegate calculator.