Which leads to the following, dueling projections:
Democratic Nomination Delegate Projection
Type
Obama
Clinton
Edwards
Remaining
50% + 1
Obama Count
2,161
2,017
18
219
2,208
Clinton Count
2,076
2.003
37
299
2,208
A few thoughts on these numbers:
Clinton has not gained any ground among pledged delegates in March and April combined. Here is the tally, according to Green Papers:
PA: Clinton +10
Iowa 2nd and Third Tier: Obama +9
Colorado 2nd Tier: Clinton +2
Mississippi: Obama +7
Wyoming: Obama +2
Vermont: Obama +3
Texas: Obama +3
Rhode Island: Clinton +5
Ohio: Clinton +7
That results in a net gain of zero for both candidates in March and April. Throw in Michigan, and Obama actually gained 31 pledged delegates.
Obama has netted 28 superdelegates during March and April, according to Democratic Convention Watch. At the start of March, Clinton led 240-193 among supers, but as of this writing her lead has been cut to 261-242. That is a net gain of 28 superdelegates, and 28 overall delegates, for Obama over March and April. In other words, overall Obama is actually gaining ground in terms of delegates, despite the perception that he is stumbling.
After Tuesday, there will only be 217 pledged delegates left, plus 45 at the Michigan state party convention on May 17th. This means that unless there is a huge superdelegate rush over the next week, in seven days more superdelegates will be left than pledged delegates. May 6th is thus really the last time that voters, rather than superdelegates, will be in the spotlight during the campaign.
There seems to be a conventional wisdom forming that Clinton needs to win Indiana and "come close" in North Carolina, which I presume to mean at least closer than her nine-point victory in Pennsylvania. Given that she has not made up any ground since Wisconsin, and given how few pledged delegates remain, that certainly seems fair as a minimum requirement for Clinton. An argument could even be made that she needs to win North Carolina, given her current deficit.
As near as I can tell, the basic rationale behind the CW is that Clinton will be able to start making up significant ground in West Virginia, Kentucky and Puerto Rico. So, if (with the exception of Oregon and North Carolina) she can continue a string of victories straight from Pennsylvania to the end, and get a favorable Michigan and Florida ruling at he end of May, then she might be close enough, and have enough momentum, for superdelegates to put her over the top. However, if she gets waxed on May 6th, none of that matters.
At the very least, it is something of relief that nine superdelegates (split 5-4 in favor of Obama) have endorsed over the last two days, and that Obama could plausibly deliver a CW-knockout blow with a sweep on May 6th. For those of us who are looking for the campaign to come to a resolution in either May or June, that is very welcome news.