Hillary could get indicted & anyways would drop out when the FBI finds her guilty, indictment or not.
Either ways only 50% of the states have voted, so I don't see the big deal.
If he cares about the progressive movement, then Hillary clean needs to lose in November for a real progressive to rise - The Dem party needs to have a huge temporary setback if it needs to go the right way on the long term.
Supporting a mass murderer neo con is doing so service to the progressive wing.
I'm a strong Sanders supporter and donated to his campaign multiple times, I will be voting for him in the Primary in April here. Clinton is too much of a moderate and way too wishy washy for my tastes. I don't like the fact she really only takes Preogressive positions when it is the popular thing to do and really backs away from it (or doesn't embrace them) when its not the popular thing. With that being said, when its all set and done she will very likely be the nominee, a Trump or Cruz Presidency will do far more damage to the Progressive movement in this country than electing a moderate like Clinton ever would.