How much more does Sestak have to say? He was offered a job by the WH to drop out (’why’ and ‘what’). The ‘who’, ‘where’, ‘when’ don’t change that.
That is why Durbin and others are getting on the right side of the issue. My guess is Rahm is all over this and many in Congress have had enough of his tactics and want him gone. This is their way to get rid of him. I'm sure they will keep Obama out of this.