According to her own advisers, Hillary can’t win even by changing the rules:

In a Clinton campaign conference call with reporters on Wednesday, three top advisers acknowledged that even if all the delegates from disputed primaries in Michigan and Florida were seated at the Democratic convention, Mrs. Clinton would still not have enough delegates to claim the nomination.

Phil Singer, a spokesman for the campaign, estimated that in a best-case event, where the Michigan and Florida delegates were apportioned according to each state’s popular vote, Mrs. Clinton would still be about 100 delegates shy of the number needed. Delegates in those states have not been counted, the penalty for holding early primaries.

So it’s difficult to see where she has a case to stay in the race (I’m a rapper) if she can’t even win via a coup d’etat.