ABC's the note says Obama will roll out the endorsement of another DNC ex-chair today.
Paul Kirk, Ex-DNC Chair And Superdelegate, To Endorse Obama - Politics on The Huffington Post
Speaking of math -- the Obama campaign rolls out another former DNC chairman's endorsement on Friday: Paul Kirk, a superdelegate who led the party from 1985-1989, is coming out for Obama -- a day after Andrew's switch, an Obama campaign official tells The Note. (And don't count on that being it for the day, as the dribble continues.)