Obama has had a lead over Clinton among pledged delegates, leaving Clinton to hope for the support of enough super delegates to give her the nomination. Clinton picked up an early lead among super delegates before the primaries began, allowing her to claim an overall delegate lead during the early weeks of the race. As the race has gone on, far more of the super delegates have committed to Obama than Clinton. Obama now has almost as many super delegates among those who are elected to office than Clinton:
Among the 313 of 796 superdelegates who are members of Congress or governors, Clinton has commitments from 103 and Obama is backed by 96, according to lists supplied by the campaigns. Fifty-three of Obama’s endorsements have come since he won the Jan. 3 Iowa caucuses, compared with 12 who have aligned with Clinton since then.
What is particularly significant is the fact that virtually all of these super delegates who committed after the Iowa caucus went to Clinton. Clinton only has a lead of seven among the super delegates elected to office. Among all super delegates, which includes party officials along with those who are super delegates due to having been elected to office, Clinton leads Obama by 249 to 212, which is far short of what is needed to overcome Obama’s lead in pledged delegates.
Currently Clinton trails by around 150 pledged delegates. She is expected to pick up more delegates than Obama in Pennsylvania, but this gain will probably be offset by victories for Obama in other small states. Clinton would then need to pick up seventy percent of the remaining uncommitted super delegates to win the nomination, which does not appear to be likely to happen.