Messers O'Mally & Sanders can try and placate the Democratic base with all forms of rhetorical Wall Street boogiemen, racist Republicans, and Class Warfare, however Hillary's going to be the Democratic Candidate for the 2016 election, because the Oligarchy owns her, and they want their investment to see some dividends
That said, Hillary's baggage is getting bigger by the day. Obama was elected because so many wanted to vote for "the 1st black guy". You also had a large contingent who were put off by the war in Iraq, and so they voted as a referendum on Bush. Still more saw Obama as this potential "new" politician, poised to transcend modern day politics, and actually work to bring us together, based on previous stump speeches and "promises". We'll simply put aside all the optmistic blank slate voters, since the one thing in Obama's favor, besides the media & skin color, was that he had very little "baggage", to judge him by. Conservatives knew about all the Rev Wright garbage, and his stellar consistent liberal voting record, but those were really the only "biggies" as it related to baggage
Hillary on the other hand, is nearly the opposite animal. An entrenched public servant, bought and payed for a dozen times over, even less transparent than our current community organizer & chief. A massive record of both incompotence & untrustworthiness. Yes, she'll have the Democrat base vote, and with the help of the MSM and uber billioniare donars, even get those to vote for her because she'd be the 1st "woman" going against those evil woman hating Republicans. But she's not going to have those seeking to "vote a referendum", since any referendum would be against Obama & his party. She's not going to have the optimistic moderate or fence sitter, looking for a transcending politician, since she personifies DC politics & sleaziness
The left may be reeling with their presumptive nominee, knowing just how screwed a candidate they've put their support behind