Be safe! I'm eager to here more
Haha, so you can tell me how wrong I am? But thanks.
I have some time before my next appointment so I'll offer some thoughts. First of all, the caveat: there is no clear smoking gun, although that may be because the "gun" is being hidden. Or rather there are wisps of smoke - but enough of it that, in toto, it looks pretty fishy.
I also feel it necessary to declare my own bias. Not that I think I'm wrong, but that I'm at least open to being wrong. When investigating something I always want to keep my own bias to the forefront so I minimize the chances of fooling myself (this is, for instance, how I approach looking at tennis stats - I'm a Federer fan and try to make sure that my bias towards Roger doesn't overly influence my analysis). I'm a Bernie supporter, basically progressive (although on the libertarian side of things, vs. authoritarian, ala the Political Compass), and have a strong distrust of establishment politicans and corporate media, even insofar as I basically view the big media outlets--at least in the US--as being propaganda for the establishment (corporate interests, centrist politicians, military-industrial complex, etc). MSNBC/CNN for the establishment Dems, FOX for the Reps. So I tend to listen to a lot of alternative and independent news, which usually has its own bias: although unlike cable news, they are at least pretty honest about it (like me...haha).
Finally, I'm mostly not going to provide sources, both for the sake of time, but also because any source can be challenged or disputed. Plus, I think it is important that people do their own resource. If you want, later I can provide some links - but you can Google this stuff yourself. In the end, we live in an era with tons of confusing data, and no matter how presumably official or factual, there is always interpretation involved and we all have to draw our own conclusions.
OK, now to it. First of all, the biggest source of "fraud" is the news media itself. It isn't technically fraud, but it is spin and bias. Various studies have shown that the so-called "liberal" cable news tv--the biggest in the US being CNN and MSNBC--are terribly biased against Bernie, with far more negative mentions than other candidates. there is also the spin factor: for instance, the "Bernie Bros" phenomena. A recent study basically refuted the whole notion, pointing out that the whole thing is fake: Bernie supporters are no more (or less) virulent than any other candidate. Ironically Bernie is the only candidate that has spoken out against his supporters, presumably because he's the only one who has been accused.
There are so many other elements of media bias against Bernie that it is rather comical (and tragic, really). But the main point is that a lot of people, especially older viewers, have their opinions influenced and even formed by media pundits. They're getting bad information or, at best, a terribly skewed picture. This may not be technically "fraud," but is certainly
fraudulent and has a major impact on voting.
As for more specific instances of fraud, we can start with the Iowa caucus and its voting ap debacle, which was created by ex-Clinton staffers, partially funded by the Pete Buttigieg campaign. Couple that with Buttigieg's early declaration of victory, delayed counting, and media spin, and Buttigieg had a declared victory when he ended up having less votes. There are also numerous documented and filmed instances of sketchy behavior, like the ridiculous instance of the delegate flipping the coin in his hand on a tie vote, giving the delegate to Buttigieg.
Then we come to the discrepancies between official vote and exit polls, which in most cases see Bernie losing delegates. One or two instances is one thing, but you'd think the "love" would be more evenly spread around. Massachusetts is particularly telling, with Biden, Bloomberg, and Buttigieg (the three leading moderates at the time) out-performing their exit polls, and Sanders and Warren (the two progressives) under-performing. Here are the actual numbers, with official to exit poll percentages and gain or less % from exit poll:
Biden: 28.9 to 33.5 (+16.2%)
Bloomberg: 9.1 to 11.8 (+29%)
Buttigieg: 1.3 to 2.7
Sanders: 30.4 to 26.6 (-12.4%)
Warren: 25.2 to 21.5 (-14.7%)
Again, those parenthesized % aren't the difference between the two numbers, but the increase or decrease in percentage from the exit to the official. They are well above margins of error.
Texas had a variety of issues, from hundreds of poll sites closing--especially in areas that were favorable to Bernie--and exit polls showing Bernie and Biden essentially tied, but Biden winning the official count by 4.5%. Bloomberg and Warren also saw gains over their exit polls.
California is a big mess, both because of the way voting occured (over months) and still over a million uncounted votes, which at least implies the possibility of voter suppression. Once again, Biden, Buttigieg and Bloomberg all out-performed exit polls, and Bernie and Warren under-performed.
There are also discrepancies in Vermont, New Hampshire, and South Carolina - I think Michigan as well, maybe other states. I haven't looked into all of them.
Now you might say I'm focusing too much on exit polls, but two important points: One, exit polls are one of the ways that people have traditionally looked for fraud, and they generally are beyond the margin of error. When you add it all up, there is at least smoke, and a lot of it consistly pointing in a certain direction. Two, the extent of the difference, and the fact that Bernie Sanders is consistently (if not always) hurt by the difference, is rather telling.
Could all of this just be noise and accounted for by ineptitude? Possibly. But again, taking everything together--exit polls, polling sites closing, media spin and propaganda, and the fact that Bernie is consistently more hurt than other candiates, and of course the "hidden hand" of Obama congealing the moderate wing of the party--at the very least, it looks suspicious. Even if there is no actual fraud, there is a rigged and manipulated primary, which is clearly coordinated to beat Bernie, who poses more of an existential threat to the political establishment than Trump does, imo. The main reason corporate Democrats want Trump out is not because of his politics, imo, but because he's a loose cannon and is so obviously corrupt. His behavior pulls back the curtain too much, and Dems like to keep their corruption quiet and hidden. But I honestly believe that the establishment would rather see four more years of Trump then a Sanders presidency.