Bernie Sanders’ case for why he will be the Democratic nominee goes something like this: He will end the campaign close to even with Hillary Clinton in pledged delegates, and then make a persuasive argument to the party’s superdelegates, flipping enough of them to his side to get him over the threshold. But so far, her superdelegates have shown no indication of going wobbly: Not a single one has changed sides this year, despite significant pressure to do so in the states Sanders has won.
http://www.politico.com/story/2016/06/bernie-sanders-superdelegates-223746
