Sanders does excellently with independent voters, Trump does terribly outside of his 35% subset of committed Republicans. This is possibly the single best chance to get a guy like Sanders into the presidency that will happen for a long, long time. If the party does override a popular vote for Sanders, I think it will almost certainly be to protect the interests of donors to incumbent Democrats, many of whom will be superdelegates, rather than any honest concern about "electability."
I'd put that at about even money.
Losing to Cruz?
Absolutely yes. If you're a typical HN reader, you're in a filter bubble where "democratic socialism" sounds way better than it does to the average American.
I do agree that the Democratic establishment is blatantly in the tank for Clinton, who isn't particularly electable herself.
A far worse scenario is that it ends up being Sanders vs. Trump vs. Bloomberg, Bloomberg siphons disproportionately more votes away from Sanders, and we do end up with a President Trump - plus Republicans retain control of Congress and Trump gets to appoint the next SCOTUS justice. A Trump presidency with control of all three branches of government would be scary indeed.
[1] http://www.realclearpolitics.com/epolls/2016/president/us/ge...
I don't know how else to respond except to say that I strongly disagree, and think many other people would find the idea of him leading three unified branches of government scary as well.
But this is hardly the place for political flame wars.
"I voted for Bush twice, McCain, and Romney, and I'll vote for either Hillary or Bernie (two candidates I can't stand) over Trump, and I'm far from alone."
EDIT (correction): Sanders was an independent until 2015, and is now a Democrat, so my point does not apply.
It is that funding that gets used for other purposes, like securing the House, the Senate, etc., etc., and as such, regardless of his current registration, Sanders is a party outsider, and a victory for him is not as big a win for the party as a Hillary, Biden, Kerry or even Jim Webb win would be.