File this under Beginning of the End: One of the four superdelegates that pledged their support to Obama today was Virginia DNC member Jennifer McClellan, who flipped, after having been a declared Hillary supporter.
The more superdelegates the better, obviously, but following Joe Andrew last week, the more Hillary's base begins to crumble, the more she will have the realization forced upon her that the pyrrhic attempt to get the Michigan and Florida delegations seated in a way that puts her over the top is not a plausible scenario.
Sorry for the short diary :)