Tom Brokaw: Obama has 50 superdelegates waiting to endorse

From DKos:

Tom Brokaw just announced in front of a stunned Terry McAuliffe that Obama has 50 superdelegates waiting to endorse Obama.

Watch the video here

NBC News superreporter cites a source "very close to the Obama campaign" who says the additional superdelegates are "ready to go public before too long."

If Clinton wins all 4 states today she only gains 20 or so delegates. Obama's already got a 100+ delegate lead. Add 50 supers to that and it nullifies her win and puts him further ahead and pretty much out of reach even if she wins out the rest of the primaries (which she has no chance of doing).

If some of those supers were already committed to Clinton and switch (which 6 have already) it's even worse for her.