Despite the fact that she can't mathematically take the popular vote or delegate count, Hillary Clinton refuses to leave the Democratic nomination race because, she argues, until there is a nominee, she still has a chance of winning it. Her surrogates have been saying since before Pennsylvania that Obama can't "close the deal," and thus has serious questions to answer - and so Clinton could (and should) go on to be that nominee.

So she won't leave because she has a chance of winning the nomination, and she's winning the nomination because she won't leave.

The argument they are still making below the fold...