All of it is completely legal:
The Republican role is not some irrelevant anecdote. The DNC is charged, under its rules, to determine whether the Democrats in a noncompliant state made a "good faith" effort to abide by the party's electoral calendar, and to impose the full weight of its available penalties, namely a 100 percent takedown of a state's delegation, only if Democratic leaders in that state misbehaved. So the fact that it was Republicans who fomented the move-up of primaries in both these states to dates out-of-line with the DNC calendar is at the heart of the matter.
More ratfucking if the media didn't do its job for the GOP and if the open primary and caucus system abuse didn't work.
Florida's Republican governor, Charlie Crist, is, like Granholm, seen as a prime player behind the state's acceleration of the primary calendar. But Crist isn't half the Florida story; Marco Rubio, a Jeb Bush protégé who runs the nearly 2-to-1 Republican Florida House, drove that bill through the legislature like it was a tax cut limited by law to top GOP donors.
Indeed, the tracks under this train wreck trace back, in each case, to Republican maneuvers in state legislatures, political no- man's-lands for all who've blithely dismissed the disenfranchisement of the millions of registered Florida and Michigan Democrats.