I always found their reactions to be more interesting as it could imply the level of involvement or the power structure. Like I get the impression Obama is in charge Hillary is the lead handler of operations and Bush and Bidens are sorta on the outside being blackmailed and were just given assurances as long as compliant. The Bush and Bidens look like they were reliant on others in control and noticably more shocked and nervous and looking for answers. I feel Bush jr is more in the know as well and he is more like he knew eventually this would come out kinda thing but has no power to change the outcome so is just in acceptence of the situation.