There is a side of me that thinks this is all planned, but the biggest thing that makes me think Obama is abandoning Hillary on his own is the canceled rallies and the fact Harry Reid is saying "Comey is a Ruskie".
It doesn't add up that this is a planned event. Harry would be backing Comey in his decision and not accusing him of Hatch Act violations if this was a down the line Democrat narrative.
I think we are going to get the tactical nuke tomorrow, but at this point Obama is washing his hands of Hillary and hoping to save some face.
If he isn't directly linked, he can avoid any criminal charges that will likely be levied against the Clintons. I personally think he will be linked, but it could be a calculated move to give him at least an out if they don't have direct dirt on him.