Despite the wildly contradicting information about whether or not Senator Hillary Clinton will concede either today or tomorrow, the general consensus seems to be that she will "acknowledge" the delegate reality once Obama reaches the magic number. Two of her national campaign co-chairs, Terry McAuliffe and Tom Vilsack, have both used the "acknowledge once the magic number is reached" language. Given that Obama is only 34.032.5 30.5 delegates from reaching the magic number, according to Democratic Convention Watch, and that he will probably secure 17 delegates tonight in Montana and South Dakota, that puts Obama only 14.5 13.5 superdelegates away from reaching the magic number. Given the current rate of superdelegate endorsements, and the many reports of the rate signficiantly increasing as the week progresses, that is a number he will probably reach tomorrow. At the very latest, Obama will reach the magic number on Thursday.
However, while Clinton will acknowledge the delegate reality once Obama reaches the magic number, it does not appear that she will endorse Obama this week or release her delegates. As I explain in the extended entry, there are at least three strong reasons for her to keep her delegates, and wait a little while on the endorsement.
Respect for her closest supporters: Delegates tend to be some of the strongest supporters of a candidate, and have done the most work on behalf of the candidate. Asking those delegates to stay pledged to her for now is actually a show of respect for those delegates, and an acknowledgement of all the work they have put in on Clinton's behalf. Many other candidates, including Howard Dean, asked their delegates to stay committed long after their campaigns were formally suspended.
Just in case... Keeping her 1900+ delegates will keep Clinton in position to be the nominee on the extreme longshot chance that Obama either drops out or completely tanks sometime between now and the convention. It is highly unlikely, but given that her chances to be the nominee have been highly unlikely for the past three months, it also fits into a long-term pattern of behavior.
Leverage: This, of course, is the real reason to keep her delegates, for now. Clinton's 1900+ delegates give her leverage over the DNC platform, paying off her campaign debts, finding employment for her staff in Obama's general election campaign, and possibly also over Obama's high level cabinet picks, including Vice-President. Maintaining a huge delegate block is a source of leverage, and right now leverage and influence is something that Hillary Clinton will need to start rebuilding her political career.
Just as it was for Edwards, the day that Clinton endorses Obama is the day when she functionally releases her delegates. Unless a deal is quickly reached to make her Vice-President, I don't expect such an endorsement to happen either this week or next week. I have no particular insight into the odds of an Obama-Clinton ticket, although I have no doubt she will push for one. Personally, I suspect Obama will choose someone else, but I also wouldn't completely rule it out as a possibility. Until a decision is made, expect Clinton to keep her delegates in place, and make vague statements about being willing to "help the nominee" in "whatever way she can."