Updates: Just to clarify, this is not a call to seat no delegates from FL or MI, but a call for them to stop pretending this is a re-vote and admit they never held a real primary for the Democratic Presidential Nominee in the first place.
Let's imagine that the Vermont Republicans decide that they didn't want to hold the general election for Governor on the day the state told them to have it, and held it two weeks earlier. The state election people would tell them that their election was invalid, and that the results would not count toward the selection of a Governor.
And if the Vermont Republicans held their "election" without the sanction of the Vermont election authorities two weeks early, that's exactly what would happen. The results would be invalid because it wasn't an official election.
Now if the Republicans wanted to participate in the general election after learning that the Vermont election folks were serious, it would not be a do-over of the election but an initial election.
That's the situation we are in with Florida and Michigan Democratic parties. The sanctioning body in the selection process for the Democratic nominee for President of the United States was the Democratic National Committee. All the state reps voted to accept the rules, and then Michigan and Florida decided they didn't like the rules they'd voted for and wanted to move up.
So the DNC said that those primaries were not part of the selection process for the Democratic nominee for President of the United States, and as such no delegates "selected" in these "primaries" would be seated for the convention.
There's no difference here. You don't get to hold your own election any time you damn well please without the sanction of the official body and then claim that you held a legitimate election. There was no election, there was just a really fricking expensive exercise that ultimately meant nothing. It's like a straw poll held at the state Democratic convention: interesting but meaningless.
And if there was an official, sanctioned primary held later that would be the first. It's not a do-over, because there was nothing before to be done again.
You can agree or disagree with the way the decisions were made in allowing Iowa and New Hampshire and Nevada and South Carolina the first spots on the nominating calendar, but as Democrats we selected the chair -- Howard Dean -- and the state reps to the Democratic National Committee. These were democratic Democratic elections, and they came up with the rules.
If you don't like them, get new reps to change the rules for next time. But you don't get to just ignore them and then claim you've been harmed. That's what Republicans and their telecom co-conspirators do. We're supposed to be better than that.