I don't get how in every other industry anyone accused of this same type of misconduct either gets fired or loses all of the projects they're working on. Why don't we hold politicians to the same standard? He should resign... It's embarrassing for Minnesotans and democrats.
He isn't up for reelection until 2020 and only he can choose to resign, which doesn't appear to be something he wants to do right now. The Senate could expel him, but for various reasons I'm not sure Democrats want to do that. At least not without cover from a ethics investigation or something.