The thing is, if there's a politician who has never had the benefit of the doubt it'd be her. Rightly or wrongly.
Seeing the sort of shit coming out of Bernie's campaign--that recent tweet is pretty goddamn funny considering the shit he pulled with the "not a real liberal" thing earlier in the year--she probably feels it's unfair that he's getting away with far more than anyone else ever could. Had her team, just as an example, been on the wrong side of the data breach it would have been the end of the campaign. Bernie raised money off it.