Possibly that more people have started tuning into the election, and are being much more critical of her. It could be that she's in a bit of a dip right now, as well.
I haven't heard any new criticism of her in the last three months though. It's all the same stuff. Emails, wall street donations, Bosnian snipers, Clinton Cash.
Corruption is a serious insinuation. Once it's planted, it endures. Obviously we had to expect she'd get tarred with it in Republican circles, but when the message comes from Bernie Sanders it does real damage where it otherwise shouldn't have really done. Bernie ratcheted it up three months ago.
