Pointing out that the math is simply not on Bernie Sanders' side, the New York Times' Paul Krugman suggests it's time for Sanders to not drop out of the race just yet, but perhaps exercise some common sense and citizenship:
The first thing to say is that it’s still very unlikely that Sanders can win the nomination. Don’t tell me about national polls (and cherry-pick the polls that show your guy getting close); at this point it’s all about delegate counts, where Clinton has a substantial lead with the voting more than half over. The Times’s Upshot has a nice calculator that takes account of what we know about demographic factors – Sanders does well in very white states and in caucuses, not so much elsewhere – and lets you experiment with various overall leads in what remains of the race. To overtake Clinton in pledged delegates, Sanders would need to win by about a 13 point margin from here on in.
First, the Sanders campaign needs to stop feeding the right-wing disinformation machine. Engaging in innuendo suggesting, without evidence, that Clinton is corrupt is, at this point, basically campaigning on behalf of the RNC. If Sanders really believes, as he says, that it’s all-important to keep the White House out of Republican hands, he should stop all that – and tell his staff to stop it too.
Oh, and the Sanders campaign is saying that it will try to flip superdelegates even if it loses the unpledged delegates and the popular vote. Remember when evil Hillary was going to use superdelegates to steal the nomination? Double standards aside, what makes the campaign think that he will get any backing from a party he refuses to lift a finger to help?