No, John. The American People Must Finally Abandon The Democrats. All the blathering about changing the Dems, taking them over, moving them to the left, etc. etc. makes as much sense as trying to make Brooks Brothers stop making suits. The old saying was never more true than today (Citizens United, remember?): Money talks, bullshit walks.
BTW, if anybody's interested, go to the National Endowment for Democracy website and take a look at the list of directors. The political parties aren't just election machines, they are part of the apparatus of the power of the rulers, 1%, corporate elite, call them what you want.
This isn't about ideas, convincing the institutional Dems about right and wrong. They couldn't care less.