Will Bill be behind bars too?
I think there would be a good chance he'll be pulled in, too. If the FBI uncovers enough evidence to prove that the whole sordid affair was caused by Hillary's need to hide the corruption of the Clinton Foundation (which it obviously was), then I would think Bill would be an obvious co-conspirator as well as perhaps Chelsea, since she runs the foundation now.
The Clinton Foundation is obviously nothing more than the Clintons' personal slush fund, used to launder money received in exchange for their influence. This is deep corruption that goes all the way back to Bill's using Loral to funnel sensitive technology to the Chinese in the '90s in exchange for Chinese campaign contributions. Imprison the whole family and throw away the key.
Neither will be behind bars. There’s not one republican that would push for it.