Hilzoy has a must-read post. Money quote:
Many Democrats, myself included, believe that the Clintons were subjected to an unprecedented campaign of vilification during the 1990s. We are angry about this. Since I share this anger, it should go without saying that I find it completely comprehensible. But I don’t think that it would be a good idea for us to nominate a candidate who brings it out in us, especially not in an election that truly has the potential to reshape the political landscape.
Most obviously, when Hillary Clinton is attacked, it makes a lot of us angry all over again. And it seems to me that a lot of Democrats don’t just get angry in whatever way the current attack warrants. We have a lot of leftover anger from the 1990s, and it tends to spill out. I don’t think this is particularly useful if we want to win.
The Dish 