As previously stated in
this thread, many of the 304 remaining Superdelegates are "Pelosi Club" supers who will endorse the Pledged Delegate Winner. Obama is expected to take more than half the pledged delegates on May 20, ensuring that he will be that winner.
As noted in
this thread, many other Superdelegates are likely waiting for this moment as well, and they won't want the intense media attention, candidate pressure and possible negative attention from Clinton/Obama supporters that might follow if they were to wait too long and cast their deciding votes at the end of the process.
Also as noted in the above thread, the DNC would probably prefer to see this race decided by the primaries - not by the superdelegates. Looks more democratic.
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Some of the Superdelegates have not even been chosen yet. There are about 35 that won't be chosen by June 3. Subtract them from the 304 and you get 269. Take out Al Gore and Jimmy Carter, they probably won't endorse till the Convention. 267.
If only 40% of those delegates endorse Barack Obama after he has taken more than half the pledged delegates, that would be about 106 more for him.
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Here's the scenario, reasonable-case for Obama.GU 50%, IN 47%, NC 54%, WV 42%, KY 32%, OR 53%
GU 2, IN 34, NC 62, WV 12, KY 16, OR 28 = 154 Delegates by May 20
1491 + 154 = 1645 Pledged Delegates on May 20 ... (1627 = half the 3,253)
234 Superdelegates have endorsed Obama thus far.
106 Superdelegates endorse Obama between now and May 30 (most coming after the May 20 primaries)
1645 + 234 + 106 = 1985 total delegates for Obama before June 1 and 3 primaries.2024 - 1985 = 39 delegates needed for Obama to clinch the nomination in the final 3 primaries.PR 44%, MT 52%, SD 53%
PR 24, MT 8, SD 8 = 40 Delegates on June 3End of story.
(And in reality, perhaps he'll get a few more superdelegates before those primaries just so we won't be biting our nails, and we'll be able to call him the presumptive nominee soon after May 20 even though he hasn't quite clinched it yet).
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Edit: Oh yeah - MI and FL? Don't worry about it. By the time they get sorted out, so many Superdelegates will have switched sides that they'll be academic. They'll be included in some fashion to make Michiganders and Floridians satisfied at the Convention. Much ado about nothing in the end.