Something has lit a grassfire under the hind quarters of Democrats who support Hillary Clinton.

In the 24 hours since polls closed on Super Tuesday, as more than $4M in donations from 35,000 new donors have poured into Clinton's campaign, according to a senior campaign official. (As of 11:00 am, the total is nearly $5M.)

Aided by';s Obamathon, Obama's campaign has taken in 7.2M since Tuesday.

(Note: a MoveOn adviser says that none of the MoveOn money has been transferred to the Obama campaign, so the 7.2M is all indigenous.)

Both campaigns say that the pressure from the spigot shows no signs of abating.

Some of you Clinton skeptics may be taken aback at the numbers coming from the Clinton campaign in part because they are so discordant. Generally, you don't discover a small donor base overnight...unless you are the Obama campaign. And the question remains for us longform journalists: how did the biggest fundraising machine in history with the reportedly most brilliant campaign ever end up in this situation?

But I've no reason to disbelieve the Clinton campaign today. If they're raising this much money online, their major donors will feel pressure to work harder to bring in the larger donations. If they are nervous, those in their networks get nervous, and when they are bucked up, the ripple effect is the same.