Sorry about the quick-fire diary, but according to Halperin:
The Obama campaign tells Stephanopoulos that "prominent Pennsylvania supporters" will switch their support from Clinton to Obama Thursday morning due to Clinton’s negativity.
First, the traditional media is turning its back on George Stephanpoulos and Charlie Gibson for its horrible performance. Even Clinton supporter Ed Rendell was disappointed with the debate. Then this morning, Obama picks up another superdelegate endorsement from Oklahoma. Now, Clinton supporters are coming out to denounce AND reject her for being a Republican in Democratic clothing.
Am I missing anything else?
Let the backlash continue! Pennsylvania, you can end this on Tuesday.
Update from Politico:
Not "prominent" Clinton supporters, but regular voters.
The context, in any case, was a conference call with three "former Pennsylvania Clinton supporters – who left because of her increasingly negative tactics and now support Obama," pressing Obama's central counteroffensive: That Clinton's attacks against a fellow Democrat further diminish the degree to which primary voters will see her as trustworthy and likable.
Dar Thomas, a retired teacher from Pittsburgh, said she'd become disenchanted with Hillary when she reduced Obama's experience to a single speech, and deplored her "duplicity and disingenuousness and dishonesty."