I think Mega is probably partially correct as to Comey's calculation. But, I think it was Sanders that he feared, not Biden. He feared that if he indicated the FBI was recommending an indictment, the political pressure would mount on her to resign. While anyone with a lick of sense can see that the "charges" Comey laid out against Clinton cleared the bar within the applicable statute for criminality with quite a bit of room for comfort, the way he stated it gave Hillary enough wiggle room within the coterie of useful idiots that is her media rah-rah squad and the typical lefty voter. As we know, all Hillary, or any Clinton needs is a smidge of wiggle room. Comey, I think, tried his best to lay out what she did, but still leave it to the American voters to decide, thinking it would be too much of a fiasco if he did otherwise and would likely serve to elect Sanders.
I said quite awhile back that I thought Biden would end up being the Dem. nominee. However, I think he waited too late if he wanted to jump in and that Sanders received so much support from hardcore, even violent, supporters that the DNC would have a riot on its hands if they tried to install Biden over Sanders.
