Sestak needs to be given this question too.
He’s the one who first made the revelation, not Gibbs.
There would seem to be only two possibilities here. Either Sestak has a very tenuous relationship with the truth and just made up the story out of whole cloth.
Or on the other hand, this is a major scandal in the White House.
Can Obama get Sestak to fall on his sword for him?
On the third hand, they can both stay mute. And will.