.......................... Good post.
Where I would disagree is where you claim that Bharara had a future with the dem party.
I think that ship sailed long ago.
From what I have read this is a guy who is equally hated by both side of the aisle.
We hate him for what he did to Dinesh,didn't do to the big banks,possibly hillary,the Foundation and quite possibly the smoking gun the worldwide pedo ring.
The left hates him perhaps more for taking down icon after icon including the Gov. and DeBlasio.
To think that he could run for office after going after huge dems in a party that is all political all the time is probably a bad guess,IMHO.
It is easy then to imagine circumstances in which Bharara could get hired or appointed for such posts even by Democrats who dislike him. Nevertheless, for other reasons than what you suggest, it is hard to see him winning a major elective office. As with most other US Attorneys, he seems unlikely to have the necessary contacts, resources, and skills to be a successful political candidate.