@joefromchicago,
Let me toss this out and see what happens.
My presumption is that whatever change is in the works such as Joe speaks to is a consequence not so much of anything Dems have done or become but rather what their opposition has done and has become. Conservatism and the GOP, modernly, is quite different from what it was even in Nixon's time. Present Dem advantage accrues by contrast.
In this discussion of AEI panelists following the election,
http://www.youtube.com/watch?v=02WeZ81D-nA , Henry Olsen notes that exit polling found that voters who chose the answer "someone who cares about me" from the options of what they most wanted in a President, Romney lost by 18 to 82.
To the degree that conservatives hold to an ideology of self-sufficiency as the primary "principle" of proper citizenship and hold to an ideology that insists government must therefore retreat from the ideas and values of the "welfare state", to that degree they erase citizens' ability to reformulate the social contract as they perceive that is needed, for the well being of the nation and of their communities and of their families and selves. They perceive, quite correctly, that such a rigid and unrelenting ideology places compassion either very low on the scale of importances or refuses to place it on that scale at all.