I'm still "nothing will happen" gang, but it would be fucking hilarious if the thing that ends up torpedoing the DNC's credibility (I mean among normies/mainstream) was them blatantly fixing their primary again, but this time to block their own sitting president (who was previously pushed through to block Bernie) from the nomination because his brain has melted so much that capital can't ignore it.
With Bernie, they were able to put the fix in before the primary elections, so it at least had some facade of "democracy" that gave liberals plausible deniability or whatever. But the votes are in for Biden, so the only way to have an alternate candidate is 1) Hillary pushes Biden down the stairs or 2) they just straight up decide to throw away their own primary results at the convention. At least we can all draw pleasure from the hilariously impossible situation they very predictably put themselves in.