Nancy Pelosi is out today saying superdelegates should freeze in place.
"I think the electoral process has to work its way. There are still many voters unheard from yet, and I think that our candidates both have the capacity to inspire, to bring out a big vote that will hold us in good stead in November, and I think that now is not the time for anybody to weigh in."
On the surface, that seems designed to block any effort by superdelegates to swing momentum to Obama without giving Hillary more chances. But Pelosi is widely believed, for a couple of reasons, to be sympathetic to Obama.
So, that would mean it's a call to keep superdelegates from lining up with Hillary, or jumping from Obama's ship. And that would mean that the fundamental analysis (or technical analysis) of this race has changed very fast.
After Ohio, after Massachusetts, who thinks Obama can win Pennsylvania?
Has the wave crested and the bubble burst?