In Part 3 Cohen talked about the struggle for power and direction within the Democratic Party from the days of the Viet Nam War to the present, and wound up with "Frankly... I would love to see a primary challenge to Obama when he's up for re-election... Because unless you build a base through elections and then you hold the officials accountable, then you'll never get anywhere."
Here in the conclusion of the interview Cohen expands on those ideas and fills in some of the outlines to draw a rough set of guidelines or roadmap of how to get from where things stand now with the Democrats as out and out corporatists to a world of the kind of progressive populism they have been well known for at various points in history, and how it is going to take a no more Mr. Nice Guy approach from progressives and a lot of very hardnosed and fearless aggressiveness, of the kind that I think Muhammad Ali meant when he noted so many years ago "He who is not courageous enough to take risks will accomplish nothing in life."