He may be implicated up to his eyeballs in some coup plot, but not for HER benefit.
I agree. The Clintons were Obama’s biggest obstacle to post-election control of the DNC, plus they hate each other. Obama may have wanted to get rid of both Hillary and Trump, though: use the Russia narrative to damage Trump, use the private email scandal or any of numerous other scandals to damage Hillary, impeach whoever wins, install his/Jarrett’s own puppets at the DNC and in the administration. Having Comey re-open the email investigation right before the election might have been Obama’s insurance policy if Hillary won, as he was expecting.