There is no doubt in my mind that this was, on the Clinton's part that is, nothing by a calculated move in the ongoing quest to make Hillary synonomous with 'moderate' and 'centrist'.
That someone in Graham's condition might not see this doesn't surprise me, but that his son doesn't see this does.
I just hope that if they try to use a clip or photo of this in her campaign ads that Billy (if he's still around God willing) or his son will publicly repudiate them for it.
We can only hope. Because they (she) WILL use it.