it is important to know your history.
Or just how government works.
Things would be a lot rosier if people came out and rewarded Obama in the midterms for Saving the economy and passing healthcare. As he says, he can't do it alone.
And for the 2016 election, the next Democratic president is effectively going to be a lame duck with the current crisis in the house. Their chief objective over the next 4 years will be protecting Obama's legacy.
First off, Bernies talent to energize and organize needs to be put elsewhere, to build the party for 2018 and the future. We need progressives at every level, and right now state governments are even more pitiful than the house in DC. Second, Clinton's path to the nomination is much easier and much less based on wishful thinking and maybes. She's a slam dunk.
IMO Clinton is the right choice to preserve the gains Obama did make, and Bernie needs to be running the DNC and building the party apparatus to GOTV on off year elections and contest everything. He's honestly more important than Hillary, and needed elsewhere.