I think he's guilty of at worst, misbehavior, not abuse. I also think cindysid made some good points and so maybe not even much misbehavior. Franken doesn't need protection, he's already taking the right steps, first to apologize, explain his side of the story and he said he's open the possibility of a Congressional investigation. What we need to do is let this story play out. Also, unless you live in Minnesota it's really not up to you. But yeah, if the people of Minnesota demand his resignation for something of this nature, then by all means, he should resign.
I actually don't want the Democratic party to be a shining city on the hill, I just want the kind of shit that women go through every day to stop.