McCain was in on the fix. He was doing as he was directed to do, which was to pretend to campaign for President. Someone way high up in the shadows had so much stuff on the Clintoons that they were kept quiet about what they knew.
I think that the same shadow power brokers have now decided that zero has accomplished pretty much what they sent him to do. It’s time for him to go now. They also decided that Romney will be the R candidate and President. He will do as he is told also.
Did you notice how aggressive McCain’s campaign was in the primary to keep his Senate seat? Romney can be aggressive, even dirty when he want’s to. We’ve seen that. He might not have to do this with zero though, because more info will come out from other sources not connected to Romney. I had the feeling a while back that Romney has already been selected for us, not just as the Republican candidate but as the next President.
It’s entertainment for us, to keep us distracted.
I don't believe the "shadow brokers" always get their way
President Reagan would be one example
But of course your point only raises more questions. What could be sooooo bad to make the Clinton's capitulate to Obama? Murder? Corruption? What could Obama accomplish that Hillary could not? Many many questions for every plausible answer I suppose.